Appendix

I. — METEORLOGICAL

Instruments used for altitudes:—
Pocket aneroid, corrected +0.55, "R.G.S"
Casella's Alpine Sympiesometer, corrected to 67° (F.).
N.B.— Returning to Fernando Po, found that part of the liquid has lodged in upper
bulb, and therefore corrected index error by standard aneroid 1.15 (Symp. =
29.258, and standard, 30.400).
Observations at the Congo mouth in February, 1863 (from log of H.M.S. "Griffon").
Thermometer Barometer Winds Place
Engine in sea. Force & Direction
Room. A.M. P.M.

86° 76° 29.90 (1) S.E. (1) N.N.W. Loanda.
92° 77° 29.92 (1) S.W. (2) W.N.W. En route to Congo.
108° 76° 29.90 (1) S. (3) S.S.W. En route to Congo.
86° 78° 29.90 (2) S. (3) W. En route to Congo.
88° 78° 29.90 (2) S.W. (2) S.S.W. En route to Congo.
94° 80° 29.90 (2) S.E. (2) S.W. En route to Congo.
90° 83° 29.90 (2) S. (2-3)S. Congo.
90° 80° 29.90 (0) Calm (1) W. Congo.

(Signed) F. F. Flynne,
Assistant-Surgeon in Charge.

Place and Date. Time of Day. Thermometer. Symp. Remarks.
9th September 6 a.m. 65° 28.00 cor. 29.12 Cold morning, light wind from N.N.E.,
Banza nokki 9 a.m. 72° 27.70 cor. 28.82 threatened rain, 8 a.m.; noon misty,
on hills above Noon. 78° 27.90 cor. 29.02 day hazy; 3 p.m., sun hot, wind cooler
river 3 p.m. 80.5° 27.85 cor. 28.97 from west; evening, stiff sea-breeze,
6 p.m. 72° 27.90 cor. 29.02 people complain of cold; night, heavy
dew.
10th Sept. 6 a.m. 67° 27.90 cor. 29.02 Misty morning, warm at 9 a.m., wind; noon,
Same place, 9 a.m. 75° 27.75 cor. 28.87 hot sun, high sea-breeze; 3 p.m., hot
Nokki. Noon. 83° 27.85 cor. 28.97 sun, cool west wind; cloudy evening;
3 p.m. 85° 27.75 cor. 28.87 windy night, dew cold and heavy.
6 p.m. 74° 27.85 cor. 28.97
Altitude of Nokki above sea, 1,430 feet.
11th Sept. 9 a.m. 77° 27.70 cor. 28.82 Misty morning, warm but clouding over;
Banza Noon. 87° 27.55 cor. 28.67 at noon high sea-breeze, glare and hot
Chingufu 3 p.m. 83° 27.45 cor. 28.57 sun, when clouds break 97° in sun,
above Nokki; 6 p.m. 73° 27.50 cor. 28.62 2 p.m.; 3 p.m., high sea-breeze up
see also 18th river; 6 p.m., cold sea-breeze, cloudy
and 19th Sept. sky.
Altitude of Chingufu, 1,703 feet.
Chingufu
12th Sept. 6 a.m. 65° 27.70 cor. 28.82 Clear fine morning; high west wind
First observation Nekolo. at 6 a.m.; pocket aneroid 29.00
Chingufu, 9 a.m. 76° 28.50 cor. 29.62 Shady verandah facing to west; at
others at Nekolo Noon. 84° 28.35 cor. 29.47 noon aneroid 30.05; 3 p.m., hot
lower down & near 3 p.m. 85° 28.40 cor. 29.52 sun, westerly breeze, few clouds;
river. 6 p.m. 77° 28.30 cor. 29.42 6 p.m., very clear, east wind
strong; no dew at night.
Negolo Nkulu.
13th Sept. 6 a.m. 70° 28.45 cor. 29.57 Close cloudy morning; 9 a.m.,
Negolo and near 9 a.m. 77° 28.50 cor. 29.62 alternately clear and cloudy,
Congo River. Noon. 90° 28.45 cor. 29.57 glare, no wind; noon bright and
sultry, no clouds; 3 p.m., in shady
cove 10 feet above river; rain at
5.30 p.m., lasted two hours;
dispersed by westerly breeze.
Cove near river.
3 p.m. 94° 29.10 cor. 30.22
Height of Negolo, 828 feet.
Left bank.
14th Sept 6 a.m. 74° 29.30 cor 30.50 Dull, warm, and cloudy.
Right bank.
Banza Vivi on 9 a.m. 84° 29.35 cor. 30.57 Aneroid 30.60, dull day.
hills above right Noon. 80° 28.95 cor. 30.07 Anerodi 30.10 dull day, very little
bank. 3 p.m. 84° 28.35 cor. 29.47 breeze, village shut in, clouds
6 p.m. 79° 28.85 cor. 29.97 from west
Banza Vivi.
15th Sept. 6 a.m. 74° 29.15 cor. 30.25 Thick drizzle from west, no wind.
At Banza Simbo, half way up Vivi range, aneroid 29.42.
Banza Nkulu Noon 78° 28.10 cor. 29.22 Under tree facing north; puffs of
above rapids. west wind, threatened rain, none
came.
6 p.m. 75° 28.10 cor. 29.22 In veranda facing north-east; clear
night, heavy dew.
Banza Nkulu.
16th Sept. 6 a.m. 69° 28.20 cor. 29.32 Grass wet, heavy dew, rain
threatened, aneroid 29.50.
100 feet above rapids.
7.30 a.m. 73° 29.25 cor. 30.37 Aneroid 30.55.
Banza Nkulu again Noon. 80° 28.10 cor. 29.22 Aneroid 29.55, dull, cloudy, rain
threatened.
3 p.m. 75° 28.00 cor. 29.12 Dull day, clearer towards evening,
6 p.m. 75° 28.00 cor. 29.12 very heavy dew.
Altitude of Nkulu, 1212 feet.
Altitude of Yellala Rapids, 390 feet.
Nkulu.
17th Sept. 5.30 a.m. 67° 28.15 cor. 29.27 Grey, cool; threatens sunny day.
Right bank of river.
9.20 a.m. 77° 29.30 cor. 30.42 Cool west wind.
In canoe on river below Little Rapids.
10.50 a.m. 81° 20.20 cor. 30.32 Aneroid 30.57(59)
Left bank 20 feet above water, under fig-tree facing north.
Noon. 81° 29.20 cor. 30.32 Aneroid 30.50.
Negolo Town 3 p.m. 83° 28.30 cor. 29.42 Day hot, aneroid in verandah 30.50.
Banza Chingufu.
6 p.m. 71° 27.55 cor. 28.67 Clear evening, misty towards night,
young moon with halo.
Height of river below Vivi Fall, 195 feet.
18th Sept. 6 a.m. 65° 27.60 cor. 28.72 Cool, grey, no wind.
At Chingufu as 9 a.m. 76° 27.65 cor. 28.77 Strong land wind, from east, no
before. sun, heavy clouds N.E.
Noon. 90° 27.50 cor. 28.62 High west wind, hot sun.
3.30 p.m. 88° 27.35 cor. 28.47 Clear at 1 p.m., thermometer 100°
little wind, sun hot.
6 p.m. 77° 27.45 cor. 28.57 Clear evening, no dew, misty moon,
high sea-breeze at night.
19th Sept. 6 a.m. 67° 27.70 cor. 28.82 Still grey morning, no wind.
At Chingufu. 9.30 a.m. 76° 27.65 cor. 28.77 Lighter, wind from west.
Noon. 81° 27.60 cor. 28.72 Dull, light west wind.
3 p.m. 88° 27.45 cor. 28.57 Cloudy and sunny, west wind.
6 p.m. 72° 27.50 cor. 28.62 Clear, fine, little wind.
How do these agree with September 11?
Chingufu.
20th Sept. 6 a.m. 69° 27.70 cor. 28.82 Fine, clear, and still morning.
On river.
Down river 9 a.m. 82° 29.35 cor. 30.47 Hot day, aneroid 30.55; at 10 a.m.
29.85.
Off Chacha village on river.
Noon. 87° 29.35 cor. 30.47 Sea-breeze, sun hot, but obscured
by smoke of bush fires.
On river.
3 p.m. 86° 29.20 cor. 30.32 Aneroid 30.40, stiff sea breeze.
Last observation taken about 5 miles above Boma.
21 Sept. 9 a.m. 76° 29.30 cor. 30.42 Cool, cloudy, pleasant.
At Boma. Noon. 81.5° 29.25 cor. 30.37 Dull, threatens rain.
3 p.m. 86° 29.25 cor. 30.37 Dull, muggy, cloudy.
22nd Sept. 6 a.m. 77° 29.10 cor. 30.22 Dull, cloudy, cool; instrument in
Boma. verandah facing south-west.
9 a.m. 76° 20.30 cor. 30.42
Noon. 84° 29.30 cor. 30.42 Dull and warm.
3 p.m. 84° 29.10 cor. 30.22 Very dull, strong sea-breeze comes
up in afternoon, and lasts till
9 p.m.
6 p.m. 79° 29.20 cor. 30.32 Dull night.
Mean altitude of Boma (commonly called Embomma), 73 feet.
23rd Sept. 6 a.m. 70.5° 29.20 cor. 30.32 Dull morning
Boma. 9 a.m. 81.75° 29.25 cor. 30.37 Clear and sunny.
3 p.m. 92° 29.10 cor. 30.22 Clear, hot, and sunny.
6 p.m. 79° 29.15 cor. 30.27 High wind, sun.
24th Sept. 6 a.m. 74° 29.20 cor. 30.32 Cool and clear.
Boma. 9 a.m. 81° 29.30 cor. 30.42 Hot and clear.
12.30 p.m. 93.75° 29.10 cor. 30.22 Hot and clear.
3 p.m. 93.57° 29.05 cor. 30.17 Very strong sea-breeze till late at
night.
6 p.m. 79.5° 29.15 cor. 30.27 Very strong sea-breeze till late at
night.
25th Sept. 6 a.m. 74° 29.20 cor. 30.32 Dull, no sun, rain threatened.
Noon. 81° 29.20 cor. 30.32
3 p.m. 83° 29.19 cor. 30.31 Aneroid 30.15.
6 p.m. 78° 29.10 cor. 30.22 Dull, no sun, wind subsided at
night.
Porto da Senha at factory.
26th Sept. 6 a.m. 78° 29.25 cor. 30.37 Aneroid 30.62, day clear.
9 a.m. 76° 29.30 cor. 30.42 Aneroid 30.40, hot sun.
On passage in canoe down river.
Noon. 87° 29.20 cor. 30.32 Aneroid 30.45.
3 p.m. 95.5° 29.00 cor. 30.12 Aneroid 30.52.
Mean altitude of Porto da Lenha, 38 feet.
28th Sept. 6 a.m. 71.25° 29.15 cor. 30.27 Dry, cloudy morning.
Banana factory, 9 a.m. 75° 29.20 cor. 30.32 Calm, land and sea breezes very
mouth of river, regular.
60 feet above Noon. 81° 29.10 cor. 30.22 At noon thermometer at seaside in
sea level. sun (overcast) 83.5°.
3 p.m. 75.5° 29.05 cor. 30.17
6 p.m. 74° 29.05 cor. 30.17 Symp. (corrected) 30.32°.
29th Sept. 6 a.m. 73° 29.20 cor. 30.32 Weather calm; at seaside in sun
same place. 9 a.m. 80° 29.20 cor. 30.32 (overcast) thermometer 74.5°.
Noon. 83° 29.10 cor. 30.22
3 p.m. 80° 29.15 cor. 30.27 Symp. (corrected) 30.32°.
6 p.m. 74° 29.05 cor. 30.17 Night cold and windy.
30th Sept. 6 a.m. 71° 29.20 cor. 30.32 Clear weather, high wind.
same place. 9 a.m. 79° 29.15 cor. 30.27

II. — Plants Collected in the Congo, at Dahome, and the Island of
Annabom, by Mr. Consul Burton.
Received at the Herbarium, Royal Gardens, Kew,
September, 1864.

Argemone Mexicana Dahome.
Cleome Guineensis, Hf. Congo.
Gynardropsis pentaphylla, D. C. Ditto.
Ritcheia fragrans. Br. Dahome.
Alsodeia sp. Congo.
Flacourtia sp. Dahome.
Polygala avenaria, Willd. Congo.
Polycarpæa linearifolia Dahome (not laid in).
Seda cordifolia, L. Congo.
Seda an S. humilis (?) Ditto.
Seda urens, L. Ditto.
Abutilon sp. Ditto.
Urena lobata, L. Annabom and Congo.
Hibiscus cannabinus, L. Dahome.
Hibiscus vitifolius, L. Congo.
Hibiscus (Abelmoschus) Moschatus, Moench Ditto.
Hibiscus aff. H. Sabdariffæ Dahome.
Gossypium sp. Congo.
Walthenia Indica, L. Dahome.
Walthenia (?) Congo.
Triumfetta rhomboidea (?) Congo, Annabom, Dahome.
Acridocarpus sp. Congo.
Citrus Aurantium (?) Annabom (not laid in).
Citrus sp. Annabom (not laid in).
Cardiospermum Helicacabum, L. Annabom.
Anacardium occidentale, L. Congo and Annabom.
Spondias dubia? Reich. Annabom.
Cnestis(?) sp. Dahome.
Cnestis(?) sp. Congo.
(?)Spondias sp. (very young) Ditto (not laid in).
(?)Soindeia sp. fl. ft. Congo.
Rosa sp. Ditto (not laid in).
Jussieua acuminata, Jno. Congo.
Jussieua linifolia(?) Vahl. Ditto.
Mollugo Spergula, L. Ditto.
Combretum spinosum(?) Dahome (fl. only).
Combretum sp. Congo.
Quisqualis ebracteata(?) Ditto.
Combretum sp. (fruct.) Ditto (not laid in).
Combretum sp. Congo.
Modeeca tamnifolia(?), Kl. Annabom.
Syzygium Avariense, Kth. Congo.
Melothria triangularis(?), Kth. Ditto.
Melothria(?) sp. Ditto.
Cucurbitaceæ (3 other spp. very imperfect and not laid in).
Umbelliferæ Congo.
Desmodium Mauritianum(?), D.C. Ditto, Annabom(?)
Desmodium do. v. adscendens Congo.
Desmodium latifolium, D.C. Dahome.
Desmodium Gargeticum (?), D. C. Annabom.
Cajanus Indicus, L. Congo.
Eniosema cajanoides Ditto.
Eniosema aff. id. Ditto.
Eniosema aff. glomerata Ditto.
Abrus precatorius(?) Annabom.
Pisum sativum Congo.
Phaseolus sp. Annabom.
Rhynchaesia sp. Congo.
Tephrosia sp. Ditto.
Milletia(?) sp. Ditto.
Milletia(?) Ditto.
Milletia or Lonchocarpus (?) Congo.
Indigofera af. I. endeeaphylla. Jacq. Annabom.
Indigofera sp. Congo.
Indigofera sp. Dahome.
Indigofera sp. Ditto.
Sesbania sp. Congo.
Crotalaria sp. Dahome.
Glycine labialis (?) Annabom.
Erythrina sp. (?) Dahome.
Berlinia sp. (?) Congo.
Cassia occidentalis, L. Ditto (not laid in)
Cassia mimosoides (?), L. Congo.
Dichrostachys nutans (?) Ditto.
Mimosa asperata (?), L. Congo (not laid in)
Zygia fastigiata (?) Ela Dahome.
Vernonia (Decaneuron), Senegalensis Ditto, Annabom.
Vernonia Congo.
Vernonia an V. pandurata (?) Ditto.
Vernonia cinerea Ditto.
Ethulia conyzoides Ditto.
Vernonia an V. pauciflora (?) Dahome.
Vernonia stæchadifolia, Sch. Ditto.
Ageratum conyzoides, L. Annabom, Congo.
Mikania chenopodiifolia, Wild. Ditto.
Grangea, sp. Congo.
Bidens pilosa, L. Ditto.
Coronocarpus (?) Dahome.
Blumea (?) sp. Ditto.
Blumea sp. Ditto.
Blumea sp. Ditto.
Chrysanthellum Sengalense (?), D.C. Dahome.
Verbesinoid. dub. Congo.
Gnaphalium an luteo-album (?) Ditto.
Hedyotis corymbosa, L. Ditto.
Otomeria Guineensis (?), Kth. Ditto.
Randia longistyla, D. C. Dahome.
Borreria ramisparsa (?), D. C. var. Ditto.
Octodon (?) sp. Dahome.
Spermacoce Ruelliæ (?), D. C. Ditto.
Baconia Corymbosa, D. C. Ditto.
Baconia aff. d. Annabom.
Rubiaceæ, dub. Congo.
Rubiaceæ Ditto.
Rubiaceæ Annabom.
Diospyros (?) sp. Congo.
Cynoctonum (?) aff. Ditto.
Ipomæa sp. (?). Ditto.
Ipomæa sp. Ditto.
Ipomæa sp. Ditto.
Ipomæa sp. Dahome.
Ipomæa filicaulis, Bl. Congo.
Ipomæa sp. Ditto.
Ipomæa involucrata. Dahome.
Ipomæa sessiliflora (?) Clius (?) Ditto, Congo.
Leonotis nepetifolia. Bil. Congo.
Ocymum an O. gratissimum (?) Ditto (not laid in).
Moschoesma polystachya (?) Ditto (ditto).
Heliophytum Indicum, D. C. Ditto.
Heliotropium strigosum (?), Willd. Dahome.
Brillantaisia an B. patula, P. A. (?) Congo.
Dicliptera verticillaris (?), Juss. Ditto.
Asystasia Coromandeliana (?) Dahome.
Justicia Galeopsis Ditto.
Lycopersicum esculentum Congo.
Capsicum an C. frutescens (?) Ditto (ditto).
Solanum Ditto (ditto).
Solanum Annabom (ditto).
Solanum Congo (ditto).
Schwenckia Americana, L. Ditto.
Scoparia dulcis, L. Congo (not laid in).
Spathodea lævis (?) Dahome.
Sesamum Indicum, var. Ditto.
Plumbago Zeylanica, L. Congo (ditto.)
Clerodendron multiflorum (?), Don. Ditto, imp., Ditto.
Clerodendron sp. Congo.
Lippia sp. Ditto.
Lippia an L. Adoensis? Ditto.
Stachytarphita Jamaicensis, V. Dahome.
Celosia trigyna (?), L. Congo.
Erua lanata Ditto (ditto).
Pupalia lappacea, Moq. Annabom.
Achyranthes involucrata, Moq. Dahome.
Achyranthes argentea (?), Lam. Congo.
Celosia argentea, L. Dahome (ditto).
Amaranthus paniculatus, L. Congo.
Euxolus irridis Congo.
Phyllanthus pentandrus (?) Dahome.
Phyllanthus Nivari, L. Congo.
Acalypha sp. Ditto.
Manihot utilissima (?) Ditto.
Antidesma venosum Ditto.
Euphorbia pilulifera, L. Annabom.
Croton lobatum Dahome.
Phytolacca an P. Abyssinica (?) Congo (bad, not laid in).
Ricinus communis (?) Congo (not laid in).
Phyllanthus sp. Ditto.
Cannabis sativa, L. Ditto (ditto).
Boerhaavia paniculata Ditto (ditto).
Polygonum Senegalense, Meiss Ditto.
Castus Afch. Ditto (ditto).
Aneilema adhærens (?) Ditto.
Aneilema an A. ovato-oblongeum Ditto.
Aneilema Beninense Congo.
Commolyna (?) Dahome.
Fragts. Commolyneæ (not laid in).
Phœnix (?) spadix Congo.
Canna Indica (?) Congo and Annabom.
Chloris Varbata (?), Sw. Congo (not laid in).
Andropogon (Cymbopogon) sp. (?) Ditto.
Andropogon, an Sorghum (?) Ditto (ditto).
Panicum an Oplismenus (?) Ditto (ditto).
Panicum sp. Congo and Annabom.
(?) Eleusine Indica Annabom (not laid in).
Eragrostis megastachya, Lk. Congo.
Leptochloa sp (?) Ditto.
Pennisetum sp. Ditto.
Pennisetum sp. Dahome.
Pennisetum sp. Congo.
Mariscus sp. Annabom.
Cy. flagellatus (?) Hochst Congo.
Cy. sphacelatus Annabom.
Scleria an S. racemosa Congo.

III. — Heights of Stations, West Coast of Africa, Computed from Observations Made by
Capt. Burton.