Dr. Pogge is penetrating the country inland from St. Paul de Loando, the German Government having asked for him the protection of the Portuguese Government in its African jurisdiction. Dr. Holub, who has made interesting researches on the Zambesi, intends to cross the continent from south to north. Starting from the Cape of Good Hope he is to strike the Zambesi, thence the watershed district between that river and the Congo, and on to Egypt through Darfur. Dr. Stocker is exploring Lake Toana. M. Piaggia is traversing Soudan, south of Khartoum, between the Blue and White Nile, M. Lombard, corresponding secretary of the Normandy Society of Geography, has entered on a scientific mission to Abyssinia. M. J. Chouver, a Hollander of fortune and experience as a traveler, has reached the Galla country on his way to the Cape of Good Hope. Capt. Ferreira, Governor of Benguela, and several officers of the army, have offered their services to the Geographical Society of Lisbon for a Portuguese expedition across Africa, starting from the West Coast. M. Antusa is organizing a commercial station at Zomba, where he is to be joined by workmen whom the Portuguese Government has promised to furnish to erect buildings. The learned Dr. Schweinfurth has returned from a visit to the Island of Socotra, off the coast of Aden, and affirms that it is very fertile, with a splendid and varied vegetation. One-fourth of its plants are peculiar to the locality. M. Moustier, who in 1879, with M. Zweifel, discovered the source of the Niger, is again to start from Freetown on a trading venture and to fix the exact geographical position of “the rise of the mysterious river.” Lieut. Dumbleton and Surgeon Browning, R. A., are in charge of an expedition to penetrate, by the Gambia, into the valley of the Niger to Timbuctoo. Dr. Gouldsbury lately led an exploring party from the river Gambia, via Timbo and Port Lokko, to Sierra Leone, the outlay for which from the colonial treasury was £2,400, ($12,000.)