labours too numerous to be specified. A pause in East African exploration followed the departure of Dr Krapf. M. Erhardt, whose project of entering viâ Kilwa was not supported, had joined his brother missionaries in India. M. Rebmann alone remained at Rabai Mpia. And whilst under H. H. Abbas Pasha a large and complete Egypto-European expedition was, after the old fashion, organized to ascend the stream, ‘ad investigandum caput Nili’ (Seneca, Nat. Quæst. vi. 8), the new and practicable route from the Zanzibar coast seemed to have been clean forgotten. During this lull we landed, as the reader has been told in the last chapter, upon the African isle ‘Menouthias.’ NOTE. I may be excused in here alluding to an assertion often repeated by the ‘Geographer of N’gassi,’ in his Memoir on the ‘Lake Regions of East Africa reviewed’ (London, Stanford, 1864). He makes me ‘the easy dupe of the most transparent personal hostility, which wore the respectable mask of the Royal Geographical Society,’ and he assures me that I left England ‘indoctrinated’ as to what lake or lakes I should find in Central Africa, and so forth. This fretfulness of mortified vanity would not have been noticed by me had it not been so unfair to the Royal Geographical Society. In the preface of my Memoir (pp. 4-8, Journal Royal Geographical Society, vol. xxix.), I was careful to print all the instructions of the Expeditionary Committee, and I only regretted that they were not more detailed. It is absurd to assert of a traveller that he ‘visited the lake regions with a confirmed inclination to divide the lake.’ What interest can he have in bringing home any but the fullest and most exact details? The petty differences between himself and the Royal Geographical Society, which Mr Cooley assumes all the world to know, were utterly unknown to me when I left England in 1856; and, greatly despising such things, I have never since inquired into the subject. Returning home in 1859, I learned with surprise that the Comparative Geographer’ still stood upon his ‘Single Sea,’ and considered any one who dared to make two or three of it his personal enemy. That such should be the mental state of a gentleman who has not, they say, taken leave of his wits, was a phenomenon which justified my wonder; nor could I believe it till the pages of the _Athenæum_ proceeded to give me proof positive. It is melancholy to see a laborious literary man, whose name might stand so high, thus display the caput mortuum of his intellect. P.S. Another mortuary notice! My good old friend Mr Macqueen has also passed away at a ripe age, leaving behind him the memory of a laborious and useful life, especially devoted to the cause of Africa and the Africans. ----- Footnote 12: