I landed at Akromasi, a village where the true bamboo-cane grows, and found the soil to be a grey sandy clay; there were many 'women's washings' near the settlement. Shortly before reaching the Ahenia River we saw the landing-place for the valuable 'Apatim concession.' They told me on enquiry that the stream is deep and has been followed up in a surf-boat for a mile or two. It may therefore prove of use to Mr. Irvine's property, Apatim. At half-past five that evening I reached Akankon, and slept well at 'Riverside House.' Mr. Morris had begun levelling the ground and building new quarters for general use. I gave him some slips of bamboo and roots of Bahama-grass, as that planted had grown so well. Next morning we got under way early (6.50) and proceeded up the river. The canoe-men, seeing pots of palm-wine on the banks, insisted upon landing to slake their eternal thirst. The mode in which the liquor is sold shows a trustfulness on the part of the seller which may result from firm belief in his 'fetish.' Any passer-by can drink wine _a discretion_, and is expected to put the price in a calabash standing hard by. Beyond the Yengeni River I saw for the first and only time purple clay-slate overlying quartz. Collecting here and there specimens of geology, and suffering much from the sun, for I still was slightly feverish, I reached the 'great central depot' at 4 P.M. Tumento was found by observation to lie in N. lat. 4º 12' 20" and in W. long. (Gr.) 2º 12' 25". Consequently it is only eighteen direct geographical miles from the sea, the mouth of the Ancobra being in W. lat. 2º 54'. Some make the distance thirty and others sixty miles. The latter figure would apply only by doubling the windings of the bed. This ascent of the river convinced me more than ever that Enframadie is the proper terminus of its navigation. I passed the next day at Tumento, which proved to be only half the distance usually supposed along the Ancobra bed from its mouth. The time was spent mainly in resting and doctoring myself. At night the rats, holding high carnival, kept me awake till 3 A.M.; and I heard shots being continually fired from a native mine whose position was unknown. The natives now know how to bore and blast; consequently thefts of powder, drills, and fuses become every day more common. My first visit (March 20) was to the Insimankao concession. I left the surf-boat behind, and put my luggage into small canoes hired at Tumento, myself proceeding in the large canoe. We shoved off from the beach at 8.50 A.M. The Ancobra had now, after the late rains, a fair current instead of being almost dead water; otherwise it maintained the same appearance. The banks are conglomerate, grey clay and slate; gravel, sand, shingle, and pebbles of reddish quartz, bedded in earth of the same colour, succeeding one another in ever-varying succession. Only two reefs, neither of them important, projected from the sides.