These fertile regions have been hitherto unknown from the same cause which Dr Livingstone has so ably explained in regard to the western side of Africa--the jealousy of the shortsighted people who live on the coast, who, to preserve a monopoly of one particular article exclusively to themselves (ivory), have done their best to keep everybody away from the interior. I say shortsighted; for it is obvious that, were the resources of the country once fairly opened, the people on the coast would double or triple their present incomes, and Zanzibar would soon swell into a place of real importance. All hands would then be employed, and luxury would take the place of beggary. I must now (after expressing a fervent hope that England especially, and the civilised world generally, will not neglect this land of promise) call attention to the marked fact, that the missionaries, residing for many years at Zanzibar, are the prime and first promoters of this discovery. They have been for years past doing their utmost, with simple sincerity, to Christianise this negro land, and promote a civilised and happy state of existence among these benighted beings. During their sojourn among these blackamoors, they heard from Arabs and others of many of the facts I have now stated, but only in a confused way, such as might be expected in information derived from an uneducated people. Amongst the more important disclosures made by the Arabs was the constant reference to a large lake or inland sea, which their caravans were in the habit of visiting. It was a singular thing that, at whatever part of the coast the missionaries arrived, on inquiring from the travelling merchants where they went to, they one and all stated to an inland sea, the dimensions of which were such that nobody could give any estimate of its length or width. The directions they travelled in pointed north-west, west, and south-west, and their accounts seemed to indicate a single sheet of water, extending from the Line down to 14° south latitude--a sea of about 840 miles in length, with an assumed breadth of two to three hundred miles. In fact, from this great combination of testimony that water lay generally in a continuous line from the equator up to 14° south latitude, and from not being able to gain information of there being any land separations to the said water, they very naturally, and I may add fortunately, put upon the map that monster slug of an inland sea which so much attracted the attention of the geographical world in 1855-56, and caused our being sent out to Africa. The good that may result from this little, yet happy accident, will, I trust, prove proportionately as large and fruitful as the produce from the symbolical grain of mustard-seed; and nobody knows or believes in this more fully than one of the chief promoters of this exciting investigation, Mr Rebmann. From these late explorations, he feels convinced, as he has oftentimes told me, that the first step has been