Summary of Geological History of South-Eastern Egypt.

Having in the foregoing pages discussed the evidences for the relative ages of the different classes of rocks and their mutual relations, we may now endeavour to reconstruct the past geological history of this part of Egypt from the information gathered. In this process we shall reverse the order of consideration taken above, and begin with the oldest rocks.

The schists and gneisses probably represent, not the original crust of consolidation of the earth, but a complex of ancient sedimentary and igneous rocks, laid down in pre-Palæozoic times and subsequently crushed, folded, and faulted into mountains which were subsequently denuded and worn down. In parts of the main mountain-masses we may possibly still have the cores of some of these ancient elevations, but most of the present mountain peaks are formed of a later series of igneous rocks.

The first igneous intrusions into the schists and gneisses were the granites which form such peaks as Gebels Nugrus, Faraid, and Elba. Then followed crushing and folding of these rocks, giving them often a gneissose structure and opening fissures, up which came later intrusions, mostly of basic rocks, in the form of dykes. With the dykes or later came great basic intrusions of gabbroid rocks, forming such masses as Gebels Dahanib, Gerf, and Meisah.

A long interval now followed of which the rocks contain no record. We do not know whether the area was submerged or not in Palæozoic and early Mesozoic times; but if it was, all trace of the deposits of these ages has vanished in the great denudation which surely took place before the Upper Cretaceous sea swept over the country and deposited the Nubian sandstone. We do not know whether the Red Sea mountains then stood up as islands, or whether they were subsequently elevated. Nor do we know whether the area remained wholly or partly submerged during the Eocene period. But we are sure that at some time between the Upper Cretaceous and Oligocene epochs there was a great elevation of the land, with folding and faulting, especially in the areas now occupied by the great mountain masses, and possibly the mountains had their origin in this movement of elevation. The Red Sea depression may well have originated in a complementary sinking at this same period. The depth of the sea is of the same order (2,000 metres) as the height of the mountains on the adjacent land.

In the succeeding Oligocene period the land was being sculptured into something like its present form, and probably the main drainage lines of to-day were then formed.

About the Miocene epoch there was a sinking of the crust in this region. The Red Sea increased in area, and then, probably as the results of evaporation in a closed sea, deposits of gypsum were laid down. A subsequent elevation in Pliocene or post-Pliocene times raised these deposits along the present shores.

In geologically recent times a further gentle elevation has gone on, giving rise to slightly raised coral-reefs and sea-beaches. During the glacial period of Europe, the rainfall in Egypt was probably greater than at present, and during this period the great wadis received almost their final sculpturing. After the change from this rainy climate to the dry one of to-day, erosion still went on, though more slowly, in the hills; but on the plains and along the coast accumulation of sands took place, partly owing to wind transport, and partly owing to the insufficiency of the drainage waters to carry their load as far as the Nile or sea. The abundance of coral-reefs in the Red Sea is largely conditioned by the lack of in-flowing streams of silt-laden water; for the coral animal flourishes only where the water is clear.

[138]Suess, in The Face of the Earth (English edition, Vol. I, p. 374), states that “the Red Sea itself is, however, a trough-subsidence, probably the greatest in the world.”

CHAPTER XII.

TRIBAL BOUNDARIES.

The Bedouin tribes [139] inhabiting South-Eastern Egypt are:—

North of the administrative boundary (Ababda tribes):—

Ashabab.

Meleikab.

South of the administrative boundary (Um Ali Bisharin tribes):—

Hamedorab

	Kurbeilab
Aliab	Balgab
Aliab		Koatil
	Sarrarab	Mallak [140]
	Sarrarab	Mallak [140]
		Mohammad Omerab [140]

I had hoped, in surveying the country, to be able to place the boundaries of the territories of the different tribes on the field maps, and with this object in view I ascertained the claims of each tribe as precisely as possible from representative men of the different tribes who accompanied me over the ground.[141] I found that in several places the tribal claims overlapped, and in consequence I have not inserted the boundaries on the general maps. But I was able to obtain a clear and definite idea of the various claims made at the time, and as this information was obtained on the actual ground, I propose to set it down here as being a useful basis for consideration if ever it is necessary to decide upon the question of rival claims.

On the small scale map [142] which forms [Plate XXVI,] I have shown the various claims as accurately as the scale will admit of, and a reference to it will enable the statements of claim to be generally followed; but as the disputed portions frequently concern somewhat small wadis, it will in some cases be better to refer to the larger scale maps on Plates [XV,] [XVII,] and [XVIII,] to follow the smaller details.

I would remark that there did not appear to be anything in the nature of a quarrel between the various tribes over the areas of disputed ownership, these areas being occupied indifferently by either tribe, or by men of both tribes living amicably together. It was only when I attempted to lay down on a map the precise boundary of each tribe that I found certain areas had two or more claimants. In the country south of the administrative frontier, the wells and vegetation are sufficiently abundant, in proportion to the population, for the question of ownership never to be a matter of heated controversy in ordinary years; and I am told that the present relationships of the tribes are so friendly that although each tribe would resent any statement as to ownership of its traditional grounds by the others, yet as a matter of fact no objection is raised to camels and sheep of one tribe grazing in the grounds of another, a give-and-take policy being usual. When I was at Halaib, Sheikh Batran Ali Tiut (of the Hamedorab) told me they never had disputes about grazing rights, as there was plenty of ground for all; but if a dispute should arise, he would no doubt be able to settle it amicably with his neighbours, by going to the place and hearing the evidence of the oldest Arabs in the particular district and letting custom and tradition decide the point.[143]

Boundary between the Ashabab and Meleikab.—This boundary is defined in the Ministerial Arrêté of June 25, 1902, to run along the Wadi Hodein from the sea to Gebel Abraq, and thence southward to Gebel Um el Tiur. The only difficulty in laying down this line on the map is in deciding which part of the great plateau of Gebel Abraq to take as the point, and which of the two Gebels Um el Tiur is meant.

With regard to Gebel Abraq (see the large scale map on [Plate XV]), the Wadi Hodein passes its south portion; but the context of the Arrêté, defines the wells of Abraq (Bir el Sunta, Bir Abu Dibesat, Bir Abraq, and Bir Gumbit) to be in the Meleikab area, and as these lie further north it is obviously necessary, in the spirit of the Arrêté, to take a point in the north portion of Gebel Abraq. From an examination of the map on [Plate XV] it will be seen that an easy and rational interpretation would be to regard the triangulation point, marked by a beacon on the plateau 1,700 metres north-west of Bir Abraq, as being a point on the boundary; the line from Gebel Um el Tiur to pass through this point northwards till it outs the Wadi Abraq, and thence the boundary line would lie along the course of Wadis Abraq and Naam to Wadi Hodein. This boundary fulfils the obvious intention of the Arrêté, and at the same time has the advantage of being easily traceable on the ground.

As to the two Gebels Um el Tiur, I have already mentioned this difficulty in connexion with the location of the administrative boundary (see [p. 74]), and have taken the higher of the two mountains of the same name as being the one intended.

Before leaving the subject of the Meleikab boundaries, it may be worth while to mention that at the time the Arrêté of 1902 was issued the country had not been surveyed; it was then thought that Bir Shalatein lay some fifty kilometres further along the coast southward than the mouth of Wadi Hodein, and the Arrêté defined the eastern boundary of the Meleikab territory to be the coast-line from Wadi Hodein to Bir Shalatein. But as Bir Shalatein is actually in the Wadi Hodein, the real result is that the Meleikab area ends in a point on the coast, and does not include any sea-board at all. The matter is not one of great moment, because the coast-plain for some distance southward of Wadi Hodein is very barren; but it illustrates the impossibility of defining boundaries without either going over the actual ground or having a reliable map.

The Hamedorab Boundary.—The Hamedorab claim their boundary to run from Bir Meneiga southward along the watershed of Gebel Gerf, along the east side of the basin of Wadi Diqdib to just south of Bir Baaneit, thence to the hill called Kilia Arib, thence to the hill of Eqrun, thence to the pass of Bani Sana; at Bani Sana the boundary turns south-westward so as to pass west of Wadis Hamida and Nubitra, then bends to the south-east passing west of Wadis Mashushenai and Dibir, thence eastward along the south side of Wadi Di-ib.

SKETCH-MAP SHOWING
TRIBAL BOUNDARIES

Ball—Geography & Geology of South-Eastern Egypt.

PLATE XXVI.

Photo-Metal-Process. Survey Dept. Cairo 1911. (60-190)

The Hamedorab state that much of the country included in the Egyptian administration as belonging to the Ashabab is really Hamedorab country; they claim the north limit of their tribal territory to commence at the mouth of Wadi Khoda on the coast (in latitude 23° 42′) and to pass north of Wadis Khoda, Shenshef, and Shut, thence southward passing west of Wadi Beida to Bir Meneiga.[144] This is of course contrary to the Ministerial Arrêté of 1902, and as Bramly Bey (The Anglo-Egyptian Sudan, Vol. I, p. 93) mentions that on the other hand the Ababda tribe assert that their country should rightly extend south of the administrative boundary, it is probable that the administrative frontier represents a fair division of the rival claims.

The Kurbeilab Boundary.—The Kurbeilab claim their eastern boundary to run as follows: From Bir Meneiga southward along the watershed of Gebel Gerf to near the Sherefa pass, thence south-eastward along the north side of Wadi Sherefa el Sharqi on to the small hill called Tibashoi Tomokolat, thence east-north-eastward to Gebel Hamra Dom. From Gebel Hamra Dom south-eastward to the hill of Osnei, thence southward to the hills of Ti Keferiai, thence to the pass of Bani Sana. From Bani Sana southward to Gebel Warabeit, thence along the east side of Wadi Dibir, along the north side of Wadi el Qurat, across Wadi Di-ib, and then southwards along the east side of Wadi Di-ib.

The Balgab Boundary.—The Balgab boundary coincides with the main watershed from the parallel of 22° northwards to Gebel Adar Qaqa, then passes between the drainages of Wadi Hasium and Wadi Soaorib to the hill called Kulet Tinasal. From Kulet Tinasal the boundary runs east-south-eastward across Wadi Soaorib, passing north of Wadi Dishlo; thence it turns south along the mountains separating the basin of Wadi Soaorib from that of Wadi Baueiwai, thence it passes south of the heads of Wadi Miatit, eastwards across Wadi Aqwem, along the north side of Wadi el Qurat, across Wadi Di-ib, and then southwards along the eastern side of Wadi Di-ib.

The Koatil Boundary.—The Koatil claim their boundary to run from the head of Wadi Diqdib, along the mountains forming the eastern side of the basin of Wadi Diqdib to a point just south of Bir Baaneit, thence eastward to Gebel Hamra Dom. From Hamra Dom, west-south-westward to Tibashoi Tomokolat, thence along the north side of Wadi Sherefa el Sharqi and along the mountains forming the west side of the basin of Wadi Diqdib up to the head of that wadi.

The Koatil further claim as their territory the upper portion of the basin of Wadi Medarai west of longitude 35° 18′.

The Koatil also own the well called Bir Um Rasein, though all the wadis in its neighbourhood belong to the Kurbeilab.

Overlapping of Claims.—When the boundaries of the different tribes as specified above are laid down on the map (see [Plate XXVI]), it is found that there are three tracts claimed by more than a single tribe. These three disputed areas are:—

(1) A tract south and east of Bir Baaneit, claimed both by the Koatil and by the Hamedorab. The western part of this area is relatively well wooded. Its eastern portion includes the water source called Ti Dabai Hamra Dom.[145]

(2) A tract extending southward from Gebel Hamra Dom to the Wadi Qurat, claimed both by the Kurbeilab and by the Hamedorab. This area includes the Wadis Hamida, Nubitra, and Dibir, and four not very important water sources, viz., Galt Osnei, Megwel Hamida, Bir Nubitra, and Bir Mashushenai.[146]

(3) A narrow tract including the Wadis Qurat and Di-ib, claimed by all three tribes Balgab, Kurbeilab, and Hamedorab.

Ownership of Water Sources.—With the exception of the five water sources just mentioned as lying within the areas claimed by more than one tribe, there are no disputes about ownership of water supplies. The wells of the different tribes are partly enumerated in the Arrêté of 1902, but as the list there given is far from complete and many of the names are incorrect, I give below a list of the water sources belonging to the various tribes within the area surveyed. For particulars of the various water sources reference should be made to Chapter VII ([p. 234]).

Wells, etc., of the Ashabab.
Bir Muelih	Bir Helie	Igli Galt
Bir Ghadir	Bir Abu Hashim	Galt Um Tundeba
Bir Murra	Bir Shenshef	Zabara Galts
Bir Abu Had	Bir Betan	Ghuel Galts
Bir Um Gubur	Bir Rahaba	Galt Um Karaba (Migif)
Bir Masur	Bir Abu Reye	Megal Harami
Bir Ranga	Bir Abu Beid	Galt Um Gerifat
Bir Khashab	Bir Gahlia	Galt Um Gunud
Bir Abu Hamamid	Bir Orga	Galt Batoga
Bir Metawit	Bir Um Reit	Galt Um Maiat
Bir Shadli	Amar Spring	Galt el Aguz
		Galt Seiga
Wells, etc., of theMeleikab.
	Bir el Sunta	Bir Gumbit
	Bir Abu Dibesat	Bir Abu Saafa
	Bir Abraq	Bir Dif
		Bir Beida
Wells, etc., of theHamedorab.
Bir Shalatein [147]	Bir Meheriqa	Bir Salalat O Sir
Bir Adal Deib [147]	Bir Nabit	Bir Sararat Serimtai
Bir Meneiga [148]	Bir Abu Ramad	Megwel Akau
Bir Muqur	Bir Kansisrob	Ti Kureitra
Bir Baaneit	Bir Akwamtra	Bir Frukit
	Halaib Wells	Bir Qabatit
Wells, etc., of theKurbeilab.
Bir Madi	Bir Shinai	Meis-heit-ar
Bir Korbiai	Bir Kagog [149]	Megwel Adar Aqdeib
Bir Meneiga [148]	Bir Guqub	Megwel Um Ein
Bir Sararat Seyet	Bir Himeitra	Megwel Um Edwa
Bir Bint el Dreb	Bir Um Bishtit [150]	Megwel Didaut [151]
Bir Odis Maaleq [149]	Bir Qidmib	Megwel Aqwem
Bir Abu Hodeid	Bir Meisah [151]	Galt Hilwit Hasium
		Galt Kirir
Wells of the Koatil.
	Bir Diqdib
	Bir Um Rasein

According to the Arrêté of 1902, Bir Egat is Mallak property.

[139]See notes by Mr. W. E. Jennings Bramly in The Anglo-Egyptian Sudan, edited by Count Gleichen. London, 1905. Vol. I, pp. 91-93.

[140]Of these two sub-tribes (Mallak and Mohammad Omerab), I did not hear anything during my travels. The Mallak country is mostly south of latitude 22°, but extends into South-Eastern Egypt round about Bir Egat, a locality which I did not visit. The Mohammad Omerab are stated by Mr. Bramly (op. cit.) to own the wells of Bir Meisah and Megwel Didaut, which, as will be seen from what follows, are included in the area claimed as Kurbeilab by the Sheikh who accompanied me.

[141]The men were Sheikh Isa Ali Tiut, Sheikh of the Hamedorab; Sheik Hatab (brother of Mohammad Katul, Sheikh of the Kurbeilab); and Mohammad Katul Batkai, of the Kurbeilab-Aliab.

[142]In order to render it easier to follow the descriptions of the boundaries, I have purposely omitted from this map most of the place-names other than those mentioned in the descriptions. The map is to the same scale as the general orographical map on [Plate I.]

[143]Jennings Bramly Bey, the Senior Inspector of Berber Province, who has kindly favoured me with some useful criticisms of this chapter, remarks: “My experience up to date is that each principal man has a different idea of his own boundaries and that those ideas differ from day to day. My impression is that the Bisharin are as yet one big family, and that the grazing is ample for all so that the boundaries are very vague between the different tribes. Disputes of course do arise as to the possession of wadis, but I find that a week after a certain wadi has been allotted to one of two tribes, both tribes are amicably grazing in it side by side without payment. The ownership of wells is more strictly defined.”

[144]Bir Shenshef and Bir Beida are in fact classed as belonging to the Hamedorab in a MS. list of wells drawn up by Bramly Bey. But he has doubtless so classed them before their true locality was known; as they lie well to the north of the Sudan administrative boundary (Shenshef is over one hundred kilometres from the nearest point of that boundary, on the Egyptian side) the Hamedorab claim can hardly be maintained.

[145]This water source is recorded in Bramly Bey’s MS. list of wells as Hamedorab property.

[146]Mr. Bramly (Anglo-Egyptian Sudan, Vol. I, p. 92), classes Bir Mashushenai as Koatil. I am, however, informed that there are two wells of this same name, and this classification probably refers to another well than the one mentioned above.

[147]The Arrêté of 1912 ascribes these two wells to the Ashab, a tribe of whom I heard nothing when in the neighbourhood; Bramly Bey informs me that they are a sub-tribe of the Hamedorab.

[148]Joint Hamedorab-Kurbeilab.

[149]Bramly Bey, in his MS. list of wells already referred to, classes Bir Odis and Bir Kadot (probably the same as my Kagog) as Hamedorab. But they were not so claimed by the Hamedorab sheikh who accompanied me, and lie well outside the Hamedorab boundary as claimed by that sheikh.

[150]Bramly Bey informs me that the ownership of Bir Um Bishtit is disputed between the Kurbeilab and Koatil, but the wadi of the same name appears to be undisputed Kurbeilab ground.

[151]I have included these two water sources (Bir Meisah and Megwel Didaut) in the Kurbeilab list, because they lie within the boundary claimed for the Kurbeilab by the sheikh who accompanied me; but according to Mr. Bramly (Anglo-Egyptian Sudan, Vol. I, p. 92) they belong to the Mohammad Omerab.

CHAPTER XIII.

NOTES ON THE ROAD FROM HALAIB TO PORT SUDAN.

On the completion of the survey work at Halaib in May 1908, I returned to Cairo by marching in to Port Sudan and thence taking steamer to Suez. The journey from Halaib to Port Sudan with baggage camels occupied eleven days, travelling on an average thirty kilometres a day. This rate of travel did not permit of any surveying being done en route, but I took brief notes of the road and the wells on it, and as this road does not appear to be included in those described in the Sudan Handbook, I give here the notes I made. The distances are estimated from the times occupied in marching.

I would mention that from Mohamed Ghul onwards to Port Sudan there are two roads; a lower one near the sea, usually followed by the Police patrols, and an upper one which goes a little distance inland. The upper road was the one I followed, as my guides informed me that while it was only some eight kilometres longer than the lower one, there was much better water to be found on it.

In the sketch maps on Plates [XXVII] and [XXVIII,] I have shown the road and the wells on it as correctly as is possible from my notes, using the Admiralty Chart No. 2,336 as a basis for the coast-line and the maps 36 I and 46 A, issued by the Sudan Survey Department, for the position of Port Sudan and some topographical details. As the direction of march was roughly north-to-south and the total estimated distances between Halaib and Mohamed Ghul, and between Mohamed Ghul and Port Sudan, agree pretty well with those scaled from the maps after laying down the terminal positions correctly, it may be taken that the latitudes of the wells are fairly correct, while the longitudes are liable to greater error as being only rough estimations.

Ball—Geography & Geology of South-Eastern Egypt.

PLATE XXVII.

Photo-Metal-Process. Survey Dept. Cairo 1911. (190)

Rough Sketch of the Road from HALAIB TO MOHAMED GHUL

Ball—Geography & Geology of South-Eastern Egypt.

PLATE XXVIII.

Photo-Metal-Process. Survey Dept. Cairo 1911. (190)

Rough Sketch of the Upper Road from MOHAMED GHUL TO PORT SUDAN

Scale 1:750,000.

Halaib to Mohamed Ghul.

Place.	Kilometres.		Description.
Place.	Intermediate.	Total.	Description.
Halaib	—	—	Village of Hamedorab Arabs(reed huts). Small fort of two storeys; tanks below and nativepolice quarters above. No accommodation for Europeans. Severalwells, with plentiful water, in and near the village. Water hardand aperient, but drinkable. Fish of good quality plentiful andcheap, from native fishermen. Small quantities of sugar, dates,fat, etc., can be got in the bazaar. No post nor telegraph norregular communication. Rocks around village are limestones andgypsum, with some calcareous conglomerates.
Wadi Shellal	4	4	Road goes over sandy andgravelly undulating ground near sea. Wadi Shellal is a broadshallow wadi (scrub) coming from high mountains to the west.
Wadi Aqilhoq	3	7	Broad shallow wadi (scrub).About 19 km. up the wadi, west of the road, Bir Frukit, where thereis a constant supply of better water than can be got atHalaib.
Wadi Aqwai	4	11	⎱ ⎰	Shallow wadis with scrub.
Kreit-reit-or	9	20	⎱ ⎰	Shallow wadis with scrub.
Ti Kureitra	2	22	Four wells, about 12 metresdeep, lined with gypsum-slabs; about 4 km. from coast. Water bad(strongly purgative) only suitable for animals. Gypsum beds, partlycovered by gravel, extend over a broad stretch round the wells.Further on, banks of calcareous grit, covered mostly withgravel.
Bir Qabatit	18	40	About 6 km. from Ti Kureitra,mass of high felsite hills called Gebel Hadarba, passed on right ofroad; road continues over sandy and gravelly undulating groundacross shallow wadis draining from the hills. Bir Qabatit is a wellin a small wadi south of the main Wadi Qabatit, about 1½ km. fromthe sea. Water about 5 metres down, very salt, but was being drunkby the Arab patrols, who said it did not purge them.
Bir Ma-arob	14	54	Good road over coast-plain.At Bir Ma-arob, one well of bad water, strongly aperient. Well isin wadi, forming a pool about 2 metres diameter, overhung bytamarisk-bush. Water about 4 metres down from surface. NW. of thewell, group of white hills, about 50 metres high, called Tishara,of calcareous grit.
Wadi Na-akreib	8½	62½	Road over sandy and gravellyplain, here crosses a broad shallow wadi.
Wadi Hamsiat	5	67½	Wadi draining intolagoons.
Wadi Waseb	5	72½	Wadi draining into a greatinlet of the sea, looks like a good harbour.
Hibi Kwan	3	75½	Wadi draining into a largeinlet. Coast about here much broken, with coral reefs andislets.
Bir Delaut	12½	88	Good road on to Bir Delaut.Three wells in alluvium of wadi, about 500 metres from sea. Waterabout 4 metres down. The southernmost well is the best. Watergood.
	3	91	Road passes head of longinlet, then it passes east of a mass of limestone hills called AbuHamama, about 200 metres high. A little further on, another biginlet called Halaqa, close south of which are limestone-hills about150 metres high.
	13	104	Road passes west of limestonehills. Further on it crosses the wide and bushy Wadi Shenaab.
	14	118	Road turns sharply eastwardthrough low hills (sandstones and grits underlying gypseouslimestones, all dipping gently eastwards).
Megwel Shumab	1	119	Road passes close to MegwelShumab, a shallow pit excavated in limestone with a little tunnelrunning eastwards. Water very bad, used only by animals.
	5	124	Road hitherto over undulatingground, here becomes nearly level.
Wadi Qumat Yawab	10	134	Road crosses broad shallowwadi.
Dungunab	7	141	Small village of huts andtents on coast. Good water at well about 3 km. inland. Mr.Crossland is carrying on work here in connexion with pearl-oysterindustry. Meteorological station.
Tribal boundary	9	150	From Dungunab, road detourswestward to round an inlet of the sea, then goes over a sandy andgravelly undulating plain with bushes and grasses. Boundary betweenHamedorab and Amarar country marked by two wooden posts.
Wadi Hukeib	3	153	Road crosses wadi. High whitehills, 10 km. to west of road; as seen through field-glass, theseappear to be of white granite seamed by basic dykes. There is agood well, Bir Hukeit-ar, in Wadi Hukeib about 4 km. west of roadand 5 km. from sea.
Wadi Yameinai	8	161	Broad wadi, wherein an acreor two has recently been planted with durra. About 6 or 7 km.inland from this point, is a sheikh’s tomb, white and conspicuousin the morning light.
Mohamed Ghul	8	169	Small village on coast.Police fort with two decent rooms above, used by mamûr as officeand quarters. No supplies worth mention.

Mohamed Ghul to Port Sudan.

Place.	Kilometres.		Description.
Place.	Intermediate.	Total.	Description.
Mohamed Ghul	—	—	Small village on coast; see above.
	16	16	Road hitherto over gently rising plain ofsand with grasses and bushes, here enters hills.
Bir Di-it	1	17	A number of very salt wells, used only bysheep and goats, sunk about 6 metres deep in the wadi bed and linedwith masonry.
Bir Salalat Aseir	27	44	Good road from Bir Di-it among granitehills with intervening wadis and small plains, very grassy inplaces, to Bir Salalat Aseir, a masonry-lined well of good water,about 4 metres deep, sunk in the alluvium of Wadi Aseir. Smallsettlement of Amarar Arabs here.
	2	46	Road after winding among hills, hereenters on level plains of granitic sand, with grasses andbushes.
	19	65	Rocks change from granite to sandstonesand limestones; road now winds among low banks.
	8	73	Road goes through east part of a mass oflow hills.
Bir Eit	19	92	After passing the above-mentioned hills,the road continues over gently undulating ground with broad sandywadis with grasses and bushes alternating with strips of igneousgravel. There are low flat-topped hills of limestone (beds dippinggently seawards) between the road and the sea. Bir Eit is on theroad; it is a masonry-lined well about 5 metres deep sunk in thewadi-alluvium close to some scarps of white gritty limestone. Watervery good. (N.B.—There is another Bir Eit in the same wadi lowerdown near the sea, of slightly bitter water). Small settlement ofAmarar Arabs. Hills round Bir Eit rise at least 100 metres abovethe wadi, coral overlying marly and gypseous beds.
Low gravel hills	8	100	Road over undulating sandy and gravellyground to two low gravel hills.
Tower	12	112	Road over sandy plain with dried-up scruband occasional small patches of igneous gravel, passes 1 km. westof a small tower on a low gravel bank.
Wadi Ga-awit-reb	4	116	Ground broken by drainage-lines. Smalltrees and a few Arab huts. Megwel Ga-awit-reb, a water source inthe wadi a little below where road crosses it.
Bir Ta-amai	11	127	Road over gently rising very sandy groundto Wadi Arba-at, a sandy wadi with numerous trees. Bir Ta-amai is awell in Wadi Arba-at, a little to the west of the road, where thelatter passes between two masses of low igneous hills. Water good,about 7 metres down. Rude hut near well.
	10	137	Chimneys of Port Sudan here becomevisible in distance on clear day. Road lies over sandy plain.
Port Sudan	20	157	Rail connexion with Atbara and Suakin.Post and telegraph. Regular steamers to Suez. Permit from BritishConsul necessary before fire-arms can be taken on boardsteamers.

INDEX.

A
Ababda Arabs, [32].
„ geographical terms, [34].
Abraq springs, [122].
Abraq springs, biotite-granite near, [274].
Abraq springs, serpentine near, [325].
Absciel (Abu Seyal), old mines at, [353].
Abu Beid Hills, red gneiss of, [335].
„ el Feda, [2].
„ Hashim Hills, [209].
„ Hodeid Ogla, [214].
„ Medrik, Gariat, [30].
„ Rahal well, [238], [260].
„ Saafa springs, [118].
„ Seyal (Absciel), old mines at, [353].
Actinolite-schists, [343].
Adar Aqdeib, [222].
„ Ameit, [221].
„ Aweib, [224].
„ Aweib Um Bishtit, [219].
Adatalob Adara, [222].
„ Hadal, [222].
Admiralty Surveys, [6].
Admiralty positions, comparison of, [65].
African Reefs, Ltd., [28].
Agathon, [2].
Agriculture, [35].
Akla Da-Aiyob, [147].
Alafot, [231].
„ Onqwab, [231].
Aliab tribe, [366].
Alluvial deposits, [253].
Amarar boundary, [375].
Amphibolites, [316].
„ serpentine from, [323].
Andesites, [295].
„ altered to schists, [342].
Animal life, [24].
Ankalidot, [221].
Antiquities, [28].
Antonine Itinerary, [2].
Aplite, [272].
Apollonus, [11].
Arabs, [32].
Aristonis, [11].
Asbestos, [330].
Ashabab tribe, [366].
„ boundary of territory of, [367].
„ wells of, [371].
Ass, wild, [24].
Astronomical observations, [42].
Asut Duk pass, [159].
Augite-diorite, [289].
Augite-porphyrite, [293].
Aydat, [12].
Azimuth, method used in observations for, [47].
Azimuths, summary of observed, [48].
B
Bakewell, Mr. O. N., [17].
Balgab tribe, [366].
Balgab tribe, boundary of territory of, [369].
Bani Sana pass, [153].
Baqari Daba, [219].
Barth, [7].
Basalt, [310].
Base-lines, [39].
Basic dykes, serpentinised, [323].
„ igneous rocks, [296].
Beach deposits, [252].
Beacons at triangulation-stations, [40].
Bedouin tribes, [366].
Belzoni, [4].
Bent, [12].
Berenice, foundation of, [1].
„ position of, [65].
„ temple of, [29].
Berget Abu Sarib, [216].
Beryl, [345].
Biotite-granite, [273].
Bir Abraq, [123].
„ „ serpentine near, [325].
„ Abu Beid, [125].
„ „ Dibesat, [123].
„ „ Had, [104].
„ „ Hamamid, [84].
„ „ Hashim, [88].
„ „ Hodeid, [141].
„ „ Ramad, [157].
„ „ Reye, [114].
„ Adal Deib, [151].
„ Akwamtra, [156].
„ Baaneit, [138].
„ Beida, [133].
„ Betan, [124].
„ Bint el Dreb, [139].
„ Delaut, [374].
„ Dif, [126].
„ Di-it, [376].
„ Diqdib, [138].
„ Egat, [91].
„ Eit, [376].
„ Frukit, [162].
„ el Gahlia, [115].
„ Ghadir, [100].
„ Gumbit, [123].
„ Guqub, [92].
„ Helie, [83].
„ Heliwat, [79].
„ Himeitra, [91].
„ Kagog, [140].
„ Kansisrob, [158].
„ Khashab, [86].
„ Korbiai, [134].
„ „ serpentines near, [328].
„ Ma-arob, [374].
„ Madi, [130].
„ Mashushenai, [152].
„ Masur, [89].
„ Meheriqa, [150].
„ Meisah, [147].
„ Meneiga, [134].
„ „ magnesite-veins near, [330].
„ „ serpentines near, [329].
„ Metawit, [87].
„ Miaus, [91].
„ Muelih, [80].
„ Muqur, [137].
„ „ magnesite and asbestos near, [330].
„ Murra, [79].
„ Nabit, [156].
„ Nubitra, [154].
„ Odis Maaleq, [141].
„ Orga, [119].
„ Qabatit, [163], [373].
„ Qidmib, [144].
„ Qoleib, [84], [238].
„ Rahaba, [114].
„ el Ranga, gypseous deposits near, [258].
„ Salalat O Sir, [156], [159].
„ Sararat Serimtai, [159].
„ Shadli, [86].
„ Shalatein, [120].
„ Shenshef, [113].
„ Shinai, [140].
„ Sibrit, [82].
„ el Sunta, [122].
„ Ta-Amai, [377].
„ Um Bishtit, [145].
„ „ Gubur, [79].
„ „ Rasein, [143].
„ „ Reit, [117].
Birds, [24].
Bisharin Arabs, [32].
„ geographical terms, [34].
Bodkin peak, [200].
Botany, [25].
Boundaries, administrative, [74].
Boundaries, tribal, [366].
Bramly, Mr. W. E. Jennings, [366].
Breccias, [350].
Brissus carinatus, [252].
Bruce, [3].
C
Cailliaud, [3], [345].
Calcareous schists, [348].
„ tufa, [257].
Calcite, in mica-schists of Sikait, [346].
„ in veins at Romit, [353].
Camel-breeding, [35].
Camel-transport, cost of, [35].
Campbell, Mr. J. Morrow, [15], [21], [92].
Cannon-ball weathering of diabase, [307].
Chalybite, [353].
Charcoal-burning, [35].
Chauvenet, [42], [47].
Chlorite-schists, [346].
Clay-schists, [337].
Climate, [22].
Coast-line, [22].
„ method of surveying, [72].
Coast-plain, slope of, [22].
Colston and Purdy, [9].
Compass, disturbance of, by magnetic rocks, [77], [321].
Compass, variation of, [75].
Computation-methods, [41].
Contra-Apollinopolis, [29].
Copper in quartz veins, [352].
Cora, [10].
Coral-reefs, [251].
Coral-reefs, conditions for growth of, [365].
Cretaceous sea, [364].
D
Da-aiyob, [34].
Dahab Eff. Hassan, [17].
D’Anville, [2].
Darahib, [89].
„ Baaneit, [138].
Diabase, [305].
„ resembling serpentine, [328].
„ altered to serpentine, [329].
Diodorus Siculus, [2], [27].
Diorite, [286].
„ augite-, [289].
„ mica-, [290].
Diorites crushed into schists, [340].
Diorite-gneiss, [334].
Diorite-porphyrite, [291].
Doves, [24].
Dracaena, [229].
Dragon’s-blood tree, [229].
Dungunab, [375].
Dunites, [319].
„ serpentines from, [323], [325].
Dunn, Mr. S. C., [27].
Dykes, [362].
E
Edrisi, [2].
Einiwai Hill [221].
„ basalt of, [311].
Eir Arib, [224].
Emeralds, [345].
Eocene rocks, possible former extension of, [356].
Eqrun, [221].
Erf Abu Homur, [195].
Erf el Fahid, [172].
„ „ amphibolite near, [318]
„ „ quartz-rock of, [266].
„ „ serpentine near, [321].
„ el Gimal, [193].
„ el Mohaib, [195].
„ el Sagur, [173].
„ Um Araka, [197].
„ Rod Um Rashid, [173].
F
Falacro, [11].
Fault-breccias, [351].
Faults in Nubian sandstone, [358].
Ferrar, Mr. H. T., [258].
Fishing, [36].
Floyer, Mr. E. A., [11].
G
Gabbro, [296].
Gabbroid rocks, serpentines derived from, [328].
Galts, [25], [240].
Galt el Aguz, [88], [240].
„ Batoga, [111].
„ Um Tundeba, [99].
Garia Kalalat, [111].
Gariat Abu Medrik, [30].
Gazelles, [24].
Gebel Abarun, [180].
„ Abgeya, [210].
„ el Abiad, [183].
„ Abraq, [204].
„ „ sandstone-beds of, [360].
„ Abu Argub, [177].
„ „ Arta, [197].
„ „ Brush, [210].
„ „ Dahr, [195].
„ „ „ serpentine of, [324].
„ „ „ splintery schists near, [337].
„ „ Derega, [187].
„ „ Ghalqa, [189].
„ „ Ghusun, [182]
„ „ Gurdi, [186].
„ „ „ schists of, [340].
„ „ Hamamid, [175].
„ „ „ breccia of, [351].
„ „ „ diabase of, [307].
„ „ „ schists of, [341].
„ „ Hegilig, [184].
„ „ Hegilig, biotite-granite near, [273].
„ „ Hegilig, mica-diorite dyke of, [290].
„ „ Hireiq, [213].
„ „ „ aplite of, [272].
„ „ Hodeid, [213].
„ „ „ diorite-porphyrite of, [291].
„ „ „ Ogla, [214].
„ „ Husenat, [197].
„ „ Khrug, [168].
„ „ Rahia, [209].
„ „ Shigelat, [193].
„ „ Sieiyil, [197].
„ Adar Qaqa, [219].
„ „ „ muscovite-granite of, [274].
„ el Adraq, [225].
„ Allawi, [174].
„ „ calcareous tufa, of, [251].
„ „ diorite of, [286].
„ „ graphite-schist of, [350].
„ Amba-ut, [174].
„ el Anbat (Wadi Kharit), [180].
„ „ „ augite-diorite of, [290].
„ „ (Wadi Hodein), [198].
„ „ schists of, [339], [348].
„ Anfeib, [204].
„ „ sandstone-beds of, [360].
„ Anweiyib, [224].
„ Aqab el Negum, [207].
„ Arais, [197].
„ Atut, [171].
„ „ olivine-gabbro of, [302].
„ Awamtib, [201].
„ „ sandstone of, [359].
„ Baid el Khuruf, [209].
„ Balatitda (near Bir Meheriqa), [231].
„ „ (near Bir Frukit), [233].
„ Batoga, [190].
„ Beida, [217]
„ „ diorite of, [288].
„ Belamhandeit, [197].
„ Butitelib, [205].
„ „ altered quartz-felsite of, [280].
„ Dagalai, [202].
„ Dahanib, [192].
„ „ gabbro of, [298].
„ el Deheis, [210].
„ Derera, [169].
„ Derhib, [186].
„ Dibag, [191].
„ Dif, [205].
„ „ sandstone-beds of, [360].
„ Dreb, [213].
„ Duag, [225].
„ Durunkat, [180].
„ Dweig, [168].
„ Egat (near Wadi Kharit), [185].
„ Egat (near Wadi Alaqi), [225].
„ Elba, [227].
„ Elba, hornblende-granite of, [274].
„ Eqrun, [221].
„ Eqrun, schists of, [343].
„ Etresia, [207].
„ Etus, [207].
„ Faraid, [199].
„ Felieiti, [195].
„ Fereyid, [200].
„ „ granite of, [269].
„ „ kersantite dyke at, [294].
„ Geneina Gharbi, [194].
„ „ Sharqi, [194].
„ Gerf, [210].
„ „ serpentines of, [327].
„ Geror, [223].
„ Ghadir, [174].
„ „ quartz-felsite of, [279].
„ „ serpentine of, [323].
„ el Ghar, [195].
„ Ghuel, [170].
„ „ calcareous tufa of, [257].
„ Guqub, [225].
„ Gumudlum, [185].
„ Hadarba, [233].
„ „ rocks of, [281].
„ Hadal Derqa, [214].
„ Hagar Dungash, [172].
„ Hafafit, [166].
„ „ grey gneiss of, [335].
„ Hamata, [180].
„ „ quartz-felsite of, [278].
„ „ hornblende-granite of, [275].
„ „ green breccia of, [351].
„ Hamida (near Wadi Baueiwai), [223].
„ „ (near Wadi Baueiwai), talcose schist of, [348].
„ „ (near Wadi Alaqi), [225].
„ Hamra Dom, [216].
„ „ Dom, stratified rocks near, [256].
„ Hamra Tit, [220].
„ Hamrat el Feg, [207].
„ Hamrat Mukbud, [178].
„ „ „ granite of, [270].
„ „ „ dykes at, [272].
„ Hamrat Selma, [168].
„ Hamrat Wogud, [173].
„ Hangalia, [169].
„ Hanquf, [232].
„ Harhagit, [198].
„ Hateib, [225].
„ el Heda, [179].
„ Hefeiri, [184].
„ Heianai, [225].
„ Heleikonti, [225].
„ Hendusi, [197].
„ Hilwit Hasium, [214].
„ Himeitra, [225].
„ Hindia, [198].
„ Hodein, [204].
„ Homr Akarim, [178].
„ el Homur, [187].
„ Humariai, [217].
„ Igli el Ahmar (el Atshani), [171].
„ Igli el Iswid (el Rayani), [171].
„ „ „ rocks of, [281].
„ Is, [220].
„ Iteima, [173].
„ Kahfa, [177].
„ „ granite-porphyry dykes of, [276].
„ „ trachyte dykes of, [285].
„ Kala, [206].
„ Kalalat, [191].
„ Khashab, [217].
„ Khashir, [185].
„ Khulla, [179].
„ Kolaiqo, [217].
„ „ quartz-felsite dykes of, [278].
„ Korabkansi, [214].
„ „ serpentine of, [329].
„ Korbiai, [211].
„ Kulyeit, [210].
„ Leqaq, [220].
„ Lewewi, [174].
„ Lilowit, [205].
„ el Mahali, [180].
„ „ rocks of, [281].
„ Mansur Diab, [214].
„ Marasan, [178].
„ Mashushenai, [223].
„ Medarai, [213].
„ Medsus, [178].
„ Meis-heit-ar, [219].
„ Meneiga, [211].
„ Metawit, [178].
„ Miatit, [221].
„ Mikbi, [185].
„ Migif, [167].
„ „ microcline of, [272].
„ Mishbih, [208].
„ „ granite of, [275].
„ Mowisat, [209].
„ Muelih, [172].
„ „ hornblende-granite of, [275].
„ „ quartz-felsite dykes of, [280].
„ Mudergeg, [169].
„ Muktil, [168].
„ Mulgata, [209].
„ Muqsim, [226].
„ „ chlorite-schist of, [347].
„ Muqur, [211].
„ el Naga, [209].
„ Natetiai, [207].
„ Nazla, [168].
„ „ syenite of, [283].
„ Nesheb Hasan, [210].
„ el Nekeiba, [195].
„ Niqrub el Foqani, [205].
„ Niqrub el Tahtani, [205].
„ Nubitra, [223].
„ Nuggur, [209].
„ Nugrus, [165].
„ Nukheira, [179].
„ Orga, [197].
„ Orgem, [219].
„ O Sir Eirab, [231].
„ Qidmib, [219].
„ Ranga, hæmatite at, [298].
„ „ sandstones of, [360].
„ Ras Abu Etl, [179].
„ Ras el Kharit, [185].
„ Ras Shait, [169].
„ Ras Shait, chrolite-schists near, [347].
„ Ras Um Gamil, [175].
„ Reietit, [209].
„ Reyan, [193].
„ Ribdab, [210].
„ „ chlorite-schist of, [347].
„ Romit, [209].
„ Sabahia, [173].
„ „ hornfels near, [344].
„ Sarobi, [184].
„ Seiga, [209].
„ el Sela, [231].
„ Selaia, [187].
„ „ gabbro of hill near, [302].
„ Shabih, [208].
„ Shanaiyet, [225].
„ Shebakhit, [202].
„ Shellal, [232].
„ Shendib, [232].
„ „ felsite from, [280].
„ Shendodai, [232].
„ Shenshef, [191].
„ Sheyenit, [208].
„ Shiab, [221].
„ Shigigat, [207].
„ Shoab, [184].
„ Shut, [193].
„ Shweib, [208].
„ Sikait, [174].
„ „ graphite-schists of, [350].
„ „ mica-schists of, [345].
„ „ talc-schists of, [348].
„ Soaorib, [220].
„ Sufra, [168].
„ „ andesite of, [295].
„ Suhin, [225].
„ Sukari, [173].
„ Sul Hamid, [231].
„ Suruk, [221].
„ Tarfawi, [182].
„ Tibatib, [205].
„ Tishushi, [222].
„ Tishushi Tiboki, [222].
„ Um el Abbas, [184].
„ Um Akra, [199].
„ „ Bisilla, [193].
„ „ „ granite-porphyry dykes of, [276].
„ „ „ olivine-gabbro of, [301].
„ „ „ troctolite of, [304].
„ „ Dalalil, [172].
„ „ Ein, [223].
„ „ Ein, amphibolite of, [317].
„ „ Etli, [199].
„ „ Gamil, [175].
„ „ Ghalqa, [209].
„ „ Goradi, [187].
„ „ Goraf, [169].
„ „ Gotto, [209].
„ „ Gunud, [188].
„ „ „ amphibolite of hills around, [316].
„ „ Guruf, [197].
„ „ Harba, [203].
„ „ „ sandstone of, [358].
„ „ Hasidok, [180].
„ „ Hegilig (near Wadi Naait), [189].
„ „ Hegilig (near Wadi Shut), [193].
„ „ Heshenib, [182].
„ „ „ diorite-porphyrite of, [292].
„ „ Huk, [189].
„ „ el Kalala, [208].
„ „ Khafur, [203].
„ „ „ sandstone of, [358].
„ „ Khariga, [170].
„ „ „ mica-diabase of, [310].
„ „ Krush, [210].
„ „ Laham, [182].
„ „ Maiat, [189].
„ „ Markha, [207].
„ „ Moghar, [166].
„ „ Rasein, [215].
„ „ „ granite-gneiss of, [333].
„ „ Regeba, [167].
„ „ Reit, [207].
„ „ „ felsite dykes of, [280].
„ „ Rewat, [209].
„ „ Sedri, [179].
„ „ Seleim, [220].
„ „ Sellim, [185].
„ „ Semiuki, [177].
„ „ „ hornfels of, [344].
„ „ Serg, [168].
„ „ Sididad, [204].
„ „ Sueh, [184].
„ „ Suerab, [179].
„ „ Tenedba, [198].
„ „ „ diorite of, [288].
„ „ „ serpentine of, [326].
„ „ el Tiur, [180].
„ „ el Tiur el Foqani, [225].
„ „ el Tiur el Tahtani, [225].
„ „ Tundeba, [173].
„ „ Usher, [180].
„ Wadhait, [215].
„ Waqif, [208]
„ Warabeit, [223].
„ Zabara, [169].
„ „ clay-schists of, [337].
„ „ mica-schists of, [345].
„ „ talc-schists of, [348].
„ Zatit, [185].
„ Zergat Naam, [193].
„ „ „ dykes of, [282].
„ „ „ syenite of, [283].
„ „ „ schists of, [342]
„ „ „ calcareous breccias near, [351].
„ Ziraga, [209].
Geli, ruins at, [101].
Geographical co-ordinates, method of computing and plotting, [41].
Geological Survey, [14].
Geziret el Dibia, [161].
„ Halaib el Kebir, [161].
„ Kwolala, [161].
Gimeida Hill, [216].
„ „ basalt of, [311].
Gneisses, [333].
Gneisses and schists, age and origin of, [363].
Gold in quartz-veins, [352].
Gold-mines, see Mines.
Golénischeff, [10].
Government, [37].
Grain el Rih, [110], [189].
Granite, [267].
„ biotite-, [273].
„ hornblende-, [274].
„ muscovite-, [274].
„ pegmatitic, [270].
Granite-gneiss, [333].
Granite-porphyry, [276].
Graphite-schists, [350].
Gypsum and gypseous limestones, [257].
H
Hadal Aweib Meisah, [218].
Hadal Aweib Meisah, hypersthene-gabbro of, [300].
Halaib, [65], [159], [373].
„ water of, [238].
„ gypseous rocks of, [258].
Hagar el Fil, [193].
Halal Hendiyeb, [150].
Hamedorab tribe, [366].
„ „ boundary of territory of, [368], [375].
„ „ wells of, [371].
Hamiskul Hills, [209].
Hamra, el, [172].
Hamrat Mastura, [172].
Hanqun Ra-ub, [148].
Harzburgites, [319].
„ serpentine from, [329].
von Heuglin, [7].
Hibi Kwan, [374].
Hitan Shenshef, [113].
Hohait (tree), [229].
Hornblende-granite, [274].
Hornblende-picrites, [319].
„ serpentinisation of, [325].
Hornblende-schists, [338].
Hornfels, [344].
Hull, Prof., [12].
Hume, Dr. W. F., [117], [258], [298], [360].
Hydrography, [20].
Hypersthene-gabbro, [300].
I
I Hubal, [252].
Iarih Meisah, [219].
Ibex, [24].
Ichthyophages, [2], [36].
Igneous rocks, [262].
„ „ age of, [363].
„ „ classification of, [264].
Industries, [35].
Insects, [24].
Intermediate group of igneous rocks, [283].
J
James, Mr., [346].
Jidda, means of revising longitude of, [67].
Jomard, [3].
K
Kab el Haram, [106].
Kanais, [29].
Karam Elba, [230].
Karam Hindi, [158].
Kersantite, [294].
Khamsin, [23].
Khasheib Abu Daba, [189].
Khusa el Faraon, [173].
Kikeiyet Gharbi, [222].
Kikeiyet Sharqi, [222].
Kilia Arib, [216].
Koatil tribe, [366].
„ „ boundary of territory of, [370].
„ „ wells of, [371].
Kolmanab Hill, [221].
„ „ pyroxene-granulite of, [304].
Koptos-Berenice road, [29].
Koss, Lieut., [65].
Kreishim Hill, [231].
„ „ granite-porphyry of, [276].
Kreit-reit-or, [162], [373].
Kuatianai, [163].
Kubban, ancient copper-smelting at, [353].
Kulet Meigrum, [220].
„ Tinasal, [220].
Kurbeilab tribe, [366].
„ tribe, boundary of territory of, [369].
„ wells of, [371].
Kurdeman, [99], [173].
Kwat Hewah, [139].
L
Labour, cost of Arab, [35].
Latitude, method used in determination of, [42].
Latitudes of points on Red Sea, [65].
Latitudes, summary of observed, [47].
Lavas, [361].
Levels, methods used in determination of, [49].
Lherzolites, [319].
„ serpentines from, [322].
Limonite in schists, [348].
„ in veins, [353].
Linant de Bellefonds, [4], [33].
Local attraction of plumb-line, [47].
Longitudes of points on Red Sea, [66].
M
Macalister, Mr., [13].
Mack, Mr., [28].
Madaret Um Gamil, [175].
Magnesite, [330].
Mallak tribe, [366].
Marble, [349].
Marwot Elemikan, [188].
„ Elemikan, quartz-rock of, [265].
„ Rod el Ligah, [173].
„ Rod el Ligaia, [172].
„ Rod el Ligaia, aplite of, [273].
Medina Nugrus, [106].
Megal, [25].
Megal el Harami, [105].
Megal el Selaia, [84].
Megwel, [25].
Megwel Adar Aqdeib, [153].
„ Akau, [158].
„ Aqwem, [154].
„ Didaut, [153].
„ Hamida, [155].
„ Shumab, [374].
„ Um Edwa, [147].
„ Um Ein, [154].
Meis-heit-ar, [147].
Meleikab tribe, [366].
„ tribe, boundary of territory of, [367].
„ tribe, wells of, [371].
Meneiga, ruins at, [31].
Mersas, [252].
Mersas, near Halaib, [161].
Mersa Shab, [216].
Metamorphic rocks, [331].
„ „ probable age and origin of, [363].
Mica-diabase, [310].
Mica-peridotites, [319].
„ „ serpentine from, [321].
Mica-schists, [345].
Mikeriba, [230].
Mineral products, [27].
Mineral veins, [352].
Mines, ancient, [1], [27], [30].
„ „ at Abu Seyal (Absciel), [353].
„ „ near Gebel Allawi, [100], [174].
„ „ at Gebel Sukari, [99].
„ „ at Gebel Zabara, [99], [169], [345].
„ „ at Kurdeman, [99].
„ „ at Romit, [222].
„ „ at Sikait, [106], [174], [345].
„ „ at Um Eleiga, [125].
„ „ at Um el Huetat, [172], [348].
„ „ in Wadi Betan, [124].
„ „ in Wadi Egat, [91].
„ „ in Wadi Hangalia, [81].
„ „ in Wadi Nugrus, [106].
„ „ in Wadi Sabahia, [99].
„ „ in Wadi Salib Abiad, [112].
„ „ in Wadi Um Dafiri, [100].
Mining-leases, [28].
Miocene, sinking of land during, [364].
Mira Kwan, [159].
Mitba, [144].
Miti Kwan, [91].
Mohamed Ghul, [375].
Mohamed Omerab tribe, [366].
Mons pentadactylus, [24], [199].
Moresby, [6].
Mountains and hills, [19], [164].
Mukawar Island, [109].
Muscovite-granite, [274].
N
Nahud, el, [168].
„ syenite of, [283].
Nechesia, [7].
Novum hydreuma, [11].
Nubian sandstone, [259].
„ „ former extent of, [356].
„ „ present distribution of, [357].
„ „ structural features of, [357].
„ „ faults in, [358].
„ „ igneous intrusions in, [260], [357].
„ „ fossils of, [260].
O
O Harbub, [151].
O Shakafa, [219].
O Wota, [231].
Oligocene a period of land-sculpture, [364].
Olivine-diabase, serpentine from, [326].
Ophicalcite, [323].
Orthography of place-names, [16].
Osnei, [222].
Ostrich, [24].
P
Partridges, [24].
Pegmatitic granite, [270].
Peridot and Egyptian Gems Co., [28].
Peridotites, [319].
Picrolite, [330].
Place-names, orthography of, [16].
„ „ Ababda and Bisharin, [34].
Plane-table, use of, in surveying, [68].
Plant-life, [25].
Pliocene and Recent elevation of the land, [364].
Plumb-line, local attraction of, [47].
Plutonic rocks, relative ages of, [362].
Pluvial period, evidences of, [354].
“Pola” expedition, [13], [65].
Port Sudan, [377].
Prionotus mons, [8].
Prospecting licenses, [28].
Ptolemy’s Geography, [2].
Purdy and Colston, [9].
Pyroxene-granulite, [304].
Pyroxenites, [315].
„ serpentine from, [327].
Q
Qara Saba, [222].
Qash Amir, [231].
„ „ marble near, [349].
Qrein Salama, [216].
„ „ amphibolite of, [318].
Quartz-rock, [265].
Quartzites, [335].
Quartz-felsite, [277].
Quartz-schists, [335].
Quartz veins, [352].
R
Rainfall, [23].
Raised beaches, [252].
Ras Benas, hills of, [190].
„ „ rocks of, [252], [258].
Reconnaissance for triangulation, [40].
Red Sea, origin of, [355], [364].
„ position of principal points on, [65].
Refraction, terrestrial, [49].
Roads, [36].
Road from Halaib to Port Sudan, [372].
Rock-basins, [240].
Rock-inscriptions, [31].
Rocks, igneous, [262].
„ metamorphic, [331].
„ sedimentary, [251].
Rod Anut Berer, [142].
„ el Atut, [81].
„ Elbel, [115].
„ el Geneina, [83].
„ Hauanin, [93].
„ el Hendusi, [125].
„ el Kharuf, [83].
„ el Ligah, [81].
„ el Ligaia, [81].
„ „ diorite of, [287].
„ „ talc-schists of, [348].
„ Mukrayib, [131].
„ el Nagi, diabase-sheet in, [306].
„ Um el Farag, [81].
Romit mines, [222].
„ „ chalybite and calcite at, [352].
„ „ diorite of, [288].
„ „ talc and chlorite-schist of, [348].
S
Samut, well and ruins at, [30].
Sand-dunes, [252].
Sand-grouse, [24].
Sandstone, Nubian, [259].
Sarob Kwan, [147].
Sarrarab tribe, [366].
Scenery, types of, [23].
Schweinfurth, Prof. G., [8], [25], [229].
Scragged Hill, [231].
Serpentine, [320].
„ formation and cause of shattering of, [314].
„ alteration-products of, [330].
Shadly, Sheikh, [31], [86].
Shenshef, ruins, at [31], [113].
Sikeit Hill, [190].
Sikeit Hill, granite of, [269].
Shekra el Delam, [150].
Splintery schists, [337].
Smaragdus mons, [2].
Springs, [234].
Stewart, Mr. Charteris, [260], [347].
St. Johns Island, position of, [65].
„ „ peridot-mines at, [28].
Strabo, [2].
Streeter, Mr. E., [346].
Stuart, Mr. Villiers, [40], [224].
Suakin el Qadim, [158].
Sudan surveys, connection with, [48].
Suess, Prof., [27], [355].
Sulphur at Ras Benas, [190], [258].
„ at Bir el Ranga, [258].
Syenite, [283].
„ crushed into schists, [339].
Syenite-porphyry, [285].
T
Taar Ara, [231].
Tacheometric methods, [68].
Tahaqayet, [221].
Takrat Riba, [230].
Talc-schists, [348].
Talet Kurit, [118].
„ Um Danaqa, [118].
„ Um Karaba, [125].
„ Um Sideri, [118].
Taxes, [37].
Tectonics, [354].
Temples, [29].
Tibansi Tikam Ankwei, [217].
Tibashoi, [216].
Ti Dabei Hamra Dom, [146].
Ti Keferiai, [222].
Ti Keferiai, rocks of, [313], [351].
Ti Kureitra wells, [162], [238], [373].
Ti Kureitra wells, gypsum of, [258].
Tilat Tihu Shana, [138].
Timaiakwaia, [233].
Tinadei, [221].
Ti Qireira, [218].
Titailibab, [221].
Tombs, [31].
Topazos Insula, [2].
Topographical mapping, [68], [71].
Tourmaline, [346].
Trachyte, [285].
Transport of water, [242].
Triangulation-methods, [39].
Triangulation-computations, [41].
Triangulation, minor, [71].
Triangulation, use of vertical angles in, [50].
Triangulated positions, summary of, [50].
Tribal boundaries, [366].
Troctolite, [303].
Troglodytes, [2].
Tufa deposits, [257].
Tuquqî, [216].
U
Uhlemann, [31].
Ultra-acid igneous rocks, [265].
Ultra-basic igneous rocks, [313].
Umarawi, [216].
Um Eleiga mines, [125].
„ Eleiga mines, diorite-porphyrite of, [292].
„ Eleiga mines, gabbro of, [299].
„ Gerifat water-holes, [103].
„ Himar, [172].
„ el Huetat Hills, [172].
„ „ chlorite and talc-schists of, [347], [348].
„ Moghar peak, [166].
V
Venizelos, Mr., [28].
Vertical angles, use of, in triangulation, [50].
Vetus hydreuma, [11].
Volcanic rocks crushed into schists, [341].
W
Wad el Qireira, [153].
Wadai el Anz, [106].
Wadai el Nom, [105].
Wadis, importance of, [12].
Wadis draining to the Nile, list of, [78].
Wadis draining to the Red Sea, list of, [94].
Wadi Abarun, [83].
„ Abiad (tributary of Wadi Kreiga), [135].
„ el Abiad (tributary of Wadi Rahaba), [115].
„ el Abiad lil Huluz, [102].
„ Abraq, [122].
„ Abreik, [108].
„ Aideib, [157].
„ Alaqi, [89].
„ Alfawi, [91].
„ Allawi (tributary of Wadi Ghadir), [100].
„ Allawi (tributary of Wadi Khoda), [112].
„ Abu Argub, [83].
„ „ Beid el Abiad, [125].
„ „ Beid el Azrak, [125].
„ „ Berigâ, [111].
„ „ Daba, [109].
„ „ Debebi lil Betan, [125].
„ „ Debebi lil Khoda, [112], [125].
„ „ Dibban, [109].
„ „ Etl, [104].
„ „ Fagir, [121].
„ „ Gerifat, [103].
„ „ Ghalqa, [110].
„ „ Ghusun, [107].
„ „ Gurdi, [83].
„ „ Had (tributary of Wadi Deheis), [93].
„ „ Had (tributary of Wadi Hafafit), [104].
„ „ Had (tributary of Wadi Rahaba), [115].
„ „ Hamamid, [84].
„ „ Hashim (tributary of Wadi Kharit), [83].
„ „ Hashim (tributary of Wadi Garara), [88].
„ „ Hashim (tributary of Wadi Feqoh), [128].
„ „ Hegilig, [107].
„ „ Hireiq, [142].
„ „ Hodeid, [141].
„ „ Hugban, [112].
„ „ Marwa lil Lahami, [108].
„ „ Marwa lil Naait, [110].
„ „ Marwa lil Naait, amphibolite of hill near, [317].
„ „ Nikheil, [114].
„ „ Nilih, [121].
„ „ Reye, [114].
„ „ Ribian, [115].
„ „ Rusheid, [106].
„ „ Sada, [106].
„ „ Selili, [83].
„ „ Seyal (tributary of Wadi Gerf), [81].
„ „ Seyal (tributary of Wadi Naam), [121].
„ „ Sieiyil, [125].
„ Akau, [158].
„ Akwamtra, [156].
„ Amba-ut, [99].
„ „ rock of hill at head of, [285].
„ Anbat, [83].
„ Anfeib, [129].
„ Anfeib el Tawayib, [129].
„ Antar, [87].
„ Aqilhoq, [162], [373].
„ Aqwai, [162], [373].
„ Aqwem, [154].
„ Arais, [121].
„ „ schistose serpentine of, [324].
„ el Arned, [116].
„ Atabi, [99].
„ Atalab, [129].
„ Atluk, [131].
„ Awamtib, [88].
„ Awitla, [147].
„ Baaneit, [138].
„ „ diorite of, [287].
„ Bagharid, [93].
„ Baueiwai, [154].
„ Beida, [132].
„ „ schists of, [342].
„ Belamhandeit, [122].
„ Berendiyeb, [131].
„ Betan, [124].
„ Bint el Feqoh, [93].
„ Bint el Kurdum, [114].
„ Buluk, [113].
„ Buyet, [127].
„ Dabur, [98].
„ Dagalai (tributary of Wadi Timsah), [88].
„ Dagalai lil Rahaba, [115].
„ Dageina, [91].
„ Dauriai, [93].
„ Dehaiartib, [132].
„ Defeit, [92].
„ Deheis, [93].
„ Delawet (tributary of Wadi Seyet), [127].
„ Delawet (tributary of Wadi Hasium), [141].
„ Delawet (tributary of Wadi Um Bishtit), [145].
„ Delowa, [159].
„ Dibag lil Batoga, [111].
„ Dibag lil Kunserob, [111].
„ Dibir, [152].
„ Didaut, [153].
„ Dif, [125].
„ Difoteb, [129].
„ Di-ib, [148].
„ Di-it, [155].
„ Diqdib, [138].
„ Dishlo, [144].
„ Dreb, [139].
„ Duag, [91].
„ el Dub, [117].
„ Durunkat, [104].
„ Dweig, [79].
„ Eberer, [135].
„ Edunqul, [132].
„ Egat (tributary of Wadi Kharit), [83].
„ Egat (tributary of Wadi Alaqi), [91].
„ Egat (tributary of Wadi Betan), [125].
„ Eidab, [108].
„ Eikwan, [155].
„ Eimya, [144].
„ Eirahimib, [129].
„ Elemikan, [84].
„ Enqireidia, [125].
„ Eqaiyib, [148].
„ Erf Um Araka, [121].
„ Faditiai, [129].
„ Fegas, [99].
„ Feqoh, [126].
„ el Fil, [121].
„ Ga-aweit-reb, [377].
„ Gaetri, [104].
„ el Garara, [87].
„ „ dykes of, [272].
„ „ tilted sandstones of, [358].
„ Gelabat Shabai, [126].
„ Gemal, [100].
„ „ pegmatitic granite of, [271].
„ „ diorite-gneiss of, [334].
„ „ olivine-diabase of, [308].
„ Gerf, [81].
„ Ghadir, [99].
„ Ghadrib, [88].
„ Ghuel, [99].
„ el Gihab, [118].
„ Gimal (tributary of Wadi Feqoh), [127].
„ Gumudlum (tributary of Wadi Lahami), [108].
„ Gumudlum (tributary of Wadi Khoda), [113].
„ Guqub, [92].
„ Habliai, [146].
„ Hadelshisheib, [128].
„ Hafafit, [104].
„ Haiyo, [144].
„ Haletiai, [128].
„ Hamata, [107].
„ Hamida (tributary of Wadi Defeit), [93].
„ Hamida (tributary of Wadi Baueiwai), [155].
„ Hamish, [79].
„ Hamsiat, [374].
„ Hangalia, [81].
„ Hankuk, [144].
„ Haratreit, [107].
„ Hareitra, [151].
„ Hashimaiyib, [152].
„ Hasium, [140].
„ Hateib, [92].
„ Hefeifit, [104].
„ Hefeiri (tributary of Wadi Romit), [107].
„ Hefeiri (tributary of Wadi Betan), [125].
„ Helie, [83].
„ Hilgit, [83].
„ Hilgit lil Huluz, [103].
„ Hilwit Hasium, [140].
„ Himeitra, [91].
„ Hindia, [112].
„ Hiteib, [92].
„ Hodein, [115].
„ Hukeib, [375].
„ Huluz, [102].
„ „ basalt of, [312].
„ „ diorite of, [287].
„ „ felsites of, [277], [282].
„ „ olivine-diabase of, [308].
„ Hushenab, [128].
„ Hutit, [115].
„ Ibib, [140].
„ Igli, [98].
„ „ gypseous beds of, [258].
„ Kalalat, [110].
„ „ serpentine of, [323].
„ Kamoyib, [127].
„ Kansisrob, [158].
„ Kharit, [82].
„ Khashab (tributary of Wadi Kharit), [86].
„ Khashab (tributary of Wadi Hodein) [132].
„ Khashir, [107].
„ el Khasiya, [119].
„ el Khisei, [104].
„ el Khiua, [121].
„ Khoda, [111].
„ „ quartz-boss in, [265].
„ Kilanai, [138].
„ Kiraf, [148].
„ Kirir, [91].
„ Kirwau, [143].
„ Kolaiqo (tributary of Wadi Madi), [132].
„ Kolaiqo (to sea), [136].
„ Korbiai, [134].
„ Kreiga, [134].
„ „ calcareous schist of, [349].
„ „ diabase dykes of, [309].
„ „ diorite dyke in, [288].
„ „ diorite-porphyrite dykes in, [293].
„ „ granite of, [269], [271].
„ el Kreim, [87].
„ „ dykes of, [272].
„ „ fault in sandstone in, [358].
„ Krioni, [85].
„ Kunserob, [111].
„ Kwilimandaiyeib, [153].
„ Lahami, [107].
„ Lasewid, [147].
„ Lewewi, [100].
„ Madi, [129].
„ Maghal, [119].
„ Mahali, [103].
„ Malhat, [118].
„ Mantil Hasium, [140].
„ el Marafai, [115].
„ Marasan, [103].
„ Marasani, [85].
„ Mashushenai, [152].
„ Ma-ud, [99].
„ Medarai, [143].
„ Medsus, [83].
„ Megah, [115].
„ Meisah, [146].
„ Meladoyeb, [93].
„ Meneiga, [134].
„ Merau, [91].
„ Merdiyeb, [143].
„ Metawit, [87].
„ Miatit, [154].
„ Miaus, [91].
„ Mikbi, [107].
„ Mindeit, [110].
„ Mistura, [125].
„ Mitatib, [129].
„ el Mukhatatat, [101].
„ Muegil, [116].
„ „ sandstone of, [360].
„ Muelih, [80].
„ „ augite-porphyrite dyke in, [293].
„ „ schists of, [340].
„ el Mukhit, [110].
„ Muqur, [137].
„ „ diorite of, [287].
„ Murra, [109].
„ Naait, [110].
„ Naait, amphibolite near, [317].
„ Na-akreib, [374].
„ Naam, [120].
„ el Nasbia, [101].
„ Natash, [89].
„ Nilateib, [142].
„ el Nom, [116].
„ Nubitra, [154].
„ Nugrus, [105].
„ „ diorite-gneiss of, [334].
„ „ fluidal breccia in, [350].
„ „ muscovite-granite near, [274].
„ Odis, [141].
„ Orga el Atshani, [119].
„ Orga el Rayani, [119].
„ Orgem, [146].
„ Odruk, [142].
„ O Sir Eirab, [159].
„ O Sir Hadal, [156].
„ Qabatit, [163].
„ Qadiloi, [138].
„ Qeirat, [156].
„ Qidmib, [144].
„ Qumad Lim, [150].
„ Qumat Yawab, [375].
„ el Qurat, [152].
„ Radad, [136].
„ Rahaba, [114].
„ Remalib, [128].
„ Romit, [107].
„ Saalek, [117].
„ „ faults in sandstone of, [360].
„ „ fault-breccias near, [351].
„ Sabahia, [99].
„ Safihat, [83].
„ Salalob, [149].
„ Salib el Abiad, [112].
„ „ „ chlorite-schist from, [347].
„ Salib Azrak, [112].
„ el Sania, [116].
„ Sarid, [92].
„ Sarobaiya, [147].
„ Sefent, [108].
„ Seiga, [93].
„ Serimtai, [159].
„ Seyet, [127].
„ Shab, [136].
„ Shabakhit, [88].
„ Shait, [79].
„ Shellal (near Halaib), [162], [373].
„ Shellal el Gharbi, [130].
„ Shellal el Sharqi, [137].
„ el Sheikh, [85].
„ Shendib, [151].
„ Shenshef, [113].
„ „ quartz-schist of, [337].
„ Sherefa el Gharbi, [127].
„ Sherefa el Sharqi, [139].
„ „ „ asbestos of, [330].
„ Shib, [113].
„ Shigeg, [135].
„ Shinai, [140].
„ Shoab, [107].
„ Shut, [112].
„ Siamtit, [156].
„ Sibrit, [82].
„ Sikait, [106].
„ Silsila, [122].
„ „ sandstone of, [360].
„ Sinatib, [131].
„ Sinqinyeib, [152].
„ Soaorib, [144].
„ Sortdau, [128].
„ Sorubiab, [114].
„ Suhin, [92].
„ Sukari, [98].
„ Tarfawi, [103].
„ Tawayib, [127].
„ Ti Ilak, [137].
„ Tikosha, [138].
„ Tikraneib, [142].
„ Timsah, [88].
„ Titai, [114].
„ Todhi, [158].
„ Tugudbaia, [131].
„ Unfagalan, [129].
„ Um el Abbas, [106].
„ „ Abid, [99].
„ „ Akra, [112].
„ „ Arta, [117].
„ „ Bishtit, [145].
„ „ Bisilla, [121].
„ „ Buerat, [114].
„ „ Daba, [83].
„ „ Dafiri, [99].
„ „ Deheisi, [85].
„ „ „ basalt of, [312].
„ „ Derera, [93].
„ „ Eleiga, [125].
„ „ Eshub, [108].
„ „ Etli, [114].
„ „ Gamil, [100].
„ „ Ghobasha, [108].
„ „ Gholqa, [93].
„ „ Goran, [111].
„ „ Gubur, [113].
„ „ Gunud, [108].
„ „ Guruf, [121].
„ „ Hargal, [85].
„ „ „ augite-diorite of, [289].
„ „ Hasidok, [83].
„ „ Hegiligi lil Huluz, [103].
„ „ Heran, [101], [106].
„ „ Hereini, [85].
„ „ Homar, [108].
„ „ Iteili, [104].
„ „ Kabu, [101].
„ „ Karaba (tributary of Wadi Lahami), [108].
„ „ Karaba (tributary of Wadi Salib Azrak), [112].
„ „ Khariga, [98].
„ „ „ serpentine near, [322].
„ „ „ schist of, [349].
„ „ Khuzama, [108].
„ „ Lassaf, [113].
„ „ Maiat, [111].
„ „ Marakh, [88].
„ „ Nasir, [85].
„ „ Reddam, [131].
„ „ Reit, [117].
„ „ Retba, [85].
„ „ el Rid, [88].
„ „ Rishan, [108].
„ „ Saha, [139].
„ „ Seleim, [120].
„ „ Sellim (tributary of Wadi Kharit), [83].
„ „ Sellim (tributary of Wadi Kalalat), [111].
„ „ Sellim lil Mindeit, [110].
„ „ Sellimi, [101].
„ „ Semiuki, [103].
„ „ Sereiha, [85].
„ „ Seyal (tributary of Wadi Gerf), [81].
„ „ Seyal (tributary of Wadi Serimtai), [159].
„ „ Seyal el Foqani, [105].
„ „ Seyal el Tahtani, [105].
„ „ Seyal lil Khoda, [113].
„ „ Sididad, [122].
„ „ Somra, [85].
„ „ Sueh, [101].
„ „ Suerab lil Huluz, [103].
„ „ Sumer, [110].
„ „ Sumur, [116].
„ „ Tawil lil Khoda, [112].
„ „ Tawil lil Shut, [113].
„ „ Tenedba, [120].
„ „ Teneidib, [92].
„ „ el Tiur, [83].
„ „ Tundeba, [99].
„ „ „ calcareous tufa of, [257].
„ Umeiatib, [128].
„ Wadheit, [127].
„ Warabeit, [153].
„ Waseb, [374].
„ Wieqwer, [153].
„ Yahameib, [157].
„ Yameinai, [375].
„ Yoider, [155].
„ Zabara, [99].
Water sources, list of, [242].
„ „ ownership of, [370].
„ supplies, [25], [234].
„ transport of, [242].
Watershed between Nile and Red Sea, [20].
Wehrlites, [319].
Wells, [236].
Wells, analyses of water of, [237].
Wells Mr. J. F., [90].
Wellsted, [6].
Wiekorei, [233].
Wilkinson, [6].
Z
Zabara, emerald-mines of, [346].
Zeberged, peridot-mines at, [28].

GEOGRAPHY AND GEOLOGY OF SOUTH-EASTERN EGYPT.
By Dr. J. BALL.

CORRIGENDA.

Page.
[11]	line 9 from top, for “Modellin”read “Modellim.”
[21]	footnote, line 2 from bottom,for “watershed” read “westward.”
[24]	line 2 from top, for “figures”read “fingers.”
[47]	in heading of last column of table,for “observed-computed” read“computed-observed.”
[49]	line 7 from top, for “area”read “sea.”
[49]	footnote, line 3 from bottom,for “k = of 0·13” read “k = 0·13.”
[49]	footnote, bottom line, in the denominatorof the fraction, for “2—r” read “2r.”
[51]	line 12 from bottom, in last column,for “0” read “—.”
[52]	line 12 from top, in last column,for “0” read “—.”
[54]	line 12 from top, the latitude of pointNo. 353 is “23° 47′ 37″” not “23° 47′ 47″.”
[57]	line 14 from top, for “Fokani”read “Foqani.”
[58]	line 14 from top, for “Mukur”read “Muqur.”
[59]	line 9 from bottom, for “UnRasein” read “Um Rasein.”
[60]	line 2 from bottom, in last column,for “highest” read “high.”
[61]	line 3 from top, delete “minor.”
[63]	line 8 from top, for “G. Di-ib”read “W. Di-ib.”
[72]	last line, for “as”read “if.”
[75]	line 10 from top, for “added of”read “added to.”
[76]	the observed compass-variation nearHalaib Fort was “2° 18′,” not “3° 18′,” and inthe observed variation at Helwân the figures given as secondsshould be decimals of a minute.
[77]	the yearly decrease of declination (inthree places) should be 6′·3 instead of “6′3″.”
[82]	line 22 from top, for “Wani”read “Wadi.”
[83]	line 18 from top, for “Um Selim”read “Um Sellim.”
[88]	line 11 from top, for “Feleiti”read “Felieiti.”
[98]	line 2 from top, for “Serimtay”read “Serimtai.”
[99]	lines 4 and 7 from bottom, for“Sabaia” read “Sabahia.”
[101]	line 25 from top, for “Um Heram”read “Um Heran.”
[103]	line 9 from top, for “The one”read “The upper one.”
[104]	line 17 from top, for “heap”read “head.”
[105]	line 11 from top, for “42° 34′”read “24° 34′.”
[109]	line 18 from top, for “35° 47′10″” read “35° 47′ 13″.”
[118]	line 11 from bottom, for“curved” read “carved.”
[144]	lines 10 and 22 for “Meisa”read “Meisah.”
[145]	top line, for “Meisan”read “Meisah.”
[152]	line 8 from top, for “Akwantra”read “Akwamtra.”
[153]	line 8 from top, for “aad”read “and.”
[159]	line 5 from top, for “Mikreiba”read “Mikeriba.”
[159]	last line, for “22° 13′ 24″”read “22° 13′ 25″.”
[159]	last line and footnote, for“Qosier” read “Qoseir.”
[160]	top line, for “36° 38′ 54″”read “36° 38′ 56″.”
[162]	line 7 from top, for “to”read “or.”
[162]	line 5 from bottom, for “Qubit”read “Qubet.”
[167]	line 10 from top, for “1099metres” read “1199 metres.”
[167]	line 15 from bottom, for “Krug”read “Khrug.”
[173]	line 8 from top, for “Itelma”read “Iteima.”
[173]	line 10 from bottom, for “34°44′ 35″” read “34° 41′ 35″.”
[176]	line 4 from top, for “24° 14′44″” read “24° 14′ 41″.”
[183]	line 4 from bottom, for“Mukhtatat” read “Mukhatatat.”
[186]	last line, for “east”read “west.”
[188]	line 9 from top, for “24° 54′18″” read “24° 54′ 14″.”
[188]	footnote, for “23° 57′ 67″”read “23° 57′ 46″.”
[189]	line 8 from top, delete“respectively.”
[194]	line 9 from bottom, for “these”read “there.”
[204]	line 16 from top, for “western”read “southern”
[206]	line 13 from bottom, for “34°50′ 49″” read “34° 56′ 49″.”
[211]	line 12 from bottom, for “which”read “while.”
[212]	line 20 from top, for “UmRassin” read “Um Rasein.”
[213]	line 14 from bottom, for“Kirwaw” read “Kirwau.”
[223]	line 11 from top, for “exit”read “exist.”
[223]	line 2 from bottom, for“Hashushenai” read “Mashushenai.”
[224]	line 18 from top, for “jugged”read “rugged.”
[228]	last line, for “masses”read “mosses.”
[233]	line 3 from bottom, for “in”read “on.”
[235]	footnote, for “Megwal”read “Megwel.”
[238]	line 9 from top, for “aad”read “and.”
[242]	line 3 from bottom, before“vary” insert “they.”
[245]	top line, for “Wadi Sikait”read “Wadi Shait.”
[246]	the latitude of Galt el Aguz is“23° 32′ 30″” not “23° 31′ 30″.”
[248]	the latitude of Bir Muqur is“22° 42′ 26″” not “22° 41′ 26″.”
[253]	top line, for “Mesah”read “Meisah.”
[259]	line 17 from bottom, for “Dib”read “Dif.”
[263]	line 8 from top, for “section”read “sections.”
[273]	top line, for “sprinking”read “sprinkling.”
[278]	last line, for “XXI”read “XXII.”
[304]	line 11 from bottom, for “pale”read “free.”
[304]	line 9 from bottom, for “forms”read “form.”
[306]	line 7 from top, for “44°”read “34°.”
[310]	line 11 from top, for “dolorite”read “dolerite.”
[317]	in the description of the figure, insertthe word “to” between “altering” and “granular.”
[333]	line 2 from top, for “Modergeg”read “Mudergeg.”
[339]	line 13 from top, for“resemblance” read “semblance.”
[341]	line 14 from top, for “ericite”read “sericite.”
[342]	line 18 from top, for“dentritic” read “dendritic.”
[342]	line 5 from bottom, for “on”read “in.”
[346]	line 8 from top, for “ancient”read “ancients.”
[351]	line 13 from top, for “p. 441”read “p. 341.”
[353]	line 12 from top, for“Magnetite” read “Magnesite.”
[358]	line 4 from top, for “XV”read “XX.”
[360]	line 16 from top, for “XX”read “XV.”
[366]	footnote, line 5 from bottom,for “Megwell” read “Megwel.”
[367]	footnote, line 3 from bottom,for “or” read “of.”
[387]	line 18 from top, for “Mitab”read “Mitba.”
[390]	line 14 from bottom, for“Balamhandeit” read “Belamhandeit.”
[392]	line 18 from top, for“Mokhatatat” read “Mukhatatat.”
[392]	line 25 from top, for “Kukhit”read “Mukhit.”
[393]	second column, line 16 from top,for “Kalabat” read “Kalalat.”
[394]	last line, for “Zebeged”read “Zeberged.”