The temperature of the air during the clouded morning was 75°, surface of the river 77°. What a relief it was to breathe the air of the river after a night spent in inhaling the close impure air in the forest by night!

On the 16th we possessed one boat and five canoes, carrying seventy-four men and 120 loads, so that with the weight of the boat sections, half of our men were relieved of loads, and carried nothing every alternative day. We passed by the mouth of a considerable affluent from the south-east, and camped a mile above it. The temperature rose to 94° in the afternoon, and as a consequence rain fell in torrents, preceded by the usual thunder roars and lightning flashes. Until 1 P.M. of the 17th the rain fell unceasingly. It would have been interesting to have ascertained the number of inches that fell during these nineteen hours' rain-pour. Few of the people enjoyed any rest; there was a general 1887.
July 17.
Lower
Mariri. wringing of blankets and clothes after it ceased, but it was some hours before they recovered their usual animation. The aborigines must have been also depressed, owing to our vicinity, though if they had known what wealth we possessed, they might have freely parted with their goats and fowls for our wares.

The column camped at 3 P.M. opposite the settlement of Lower Mariri. Besides their immense wooden drums, which sounded the alarm to a ten-mile distance, the natives vociferated with unusual powers of lung, so that their cries could be heard a mile off. The absence of all other noises lends peculiar power to their voices.

The Somalis, who are such excellent and efficient servants in lands like the Masai, or dry regions like the Soudan, are perfectly useless in humid regions. Five of them declined to stay at Yambuya, and insisted on accompanying me. Since we had taken to the river I had employed them as boatmen, or rather did employ them when they were able to handle a paddle or a pole, but their physical powers soon collapsed, and they became mere passengers. On shore, without having undergone any exertion, they were so prostrated after a two hours' river voyage, that they were unable to rig shelter against rain and damp, and as they were thievish the Zanzibaris refused to permit them to approach their huts. The result was that we had the trouble each day to see that a share of food even was doled out to them, as they would have voluntarily starved rather than cut down the plantains above their heads.

From opposite Lower Mariri we journeyed to a spot ten miles below the Upper Mariri on the 18th. The canoes had only occupied 4 h. 15 m., but the land column did not appear at all.

On the 19th I employed the boat and canoe crews to cut a road to above a section of the rapids of Upper Mariri. This was accomplished in 2½ hours. We returned to camp in 45 minutes. Our pace going up was similar to that of the caravan, consequently an ordinary day's travel through the forest would be six miles. On returning to camp formed the column, and 1887.
July 20.
Upper
Mariri. marched it to the end of our paths; the boat and canoes were punted up the rapids without accident, and in the afternoon the people foraged for food at a village a mile and a half above camp with happy results. On the 20th the advance column marched up and occupied the village.

About two hours after arrival some of the natives of Mariri came in a canoe and hailed us. We replied through Bakula, the native boy, and in a short time were able to purchase a couple of fowls, and during the afternoon were able to purchase three more. This was the first barter we had been able to effect on the Aruwimi. Mariri is a large settlement abounding in plantains, while at our village there were none. Two men, Charlie No. 1 and Musa bin Juma disappeared on this day. Within twenty-three days we had not lost a man.

No casualty had as yet happened, and good fortune, which had hitherto clung to us, from this date began to desert us. We were under the impression that those men had been captured by natives, and their heedless conduct was the text of a sermon preached to the men next morning when they were mustered for the march. It was not until thirteen months later that we knew that they had deserted, that they had succeeded in reaching Yambuya, and had invented the most marvellous tales of wars and disasters, which, when repeated by the officers at Yambuya in their letter to the Committee, created so much anxiety. Had I believed it had been possible that two messengers could have performed that march, we certainly had availed ourselves of the fact to have communicated authentic news and chart of the route to Major Barttelot, who in another month would be leaving his camp as we believed. From the village opposite Upper Mariri we proceeded to S. Mupé, a large settlement consisting of several villages, embowered in plantations. The chiefs of Mupé are Mbadu, Alimba, and Mangrudi.

On the 22nd Surgeon Parke was the officer of the day, and was unfortunate enough to miss the river, and strike through the forest in a wrong direction. He 1887.
July 22.
Mupé. finally struck a track on which the scouts found a woman and a large-eyed, brown-coloured child. The woman showed the route to the river, and was afterwards released. Through her influence the natives of N. Mupé on the right bank were induced to trade with us, by which we were enabled to procure a dozen fowls and two eggs.

The bed of the river in this locality is an undisturbed rock of fine-grained and hard, brick-coloured sandstone. This is the reason that the little rapids, though frequent enough, present but little obstacles to navigation. The banks at several places rose to about forty feet above the river, and the rock is seen in horizontal strata in bluffy form, in many instances like crumbling ruins of cut stone.