The close of August showed a mean temperature of 73 6/10 degrees at 6 a.m., and 85 degrees Fahrenheit at noon, with seven days of heavy and seven of light rain. Although the station was admirably drained, the climate acted unfavourably upon the people. On 9th September it was necessary for the unfortunate Dr. Gedge, my chief medical officer, to return to Khartoum, as his state of health required immediate change. Just as the diahbeeah was leaving the station, a vessel arrived from the Bahr Gazal, by which I received a letter from the German traveller, Dr. Schweinfurth. This gentleman, to whom I was quite unknown personally, had the extreme courtesy and generosity to intrust me with all the details of his geographical observations, collected in his journey in the Western Nile Basin. It was necessary for me to return personally to Khartoum to assure myself that my arrangements should be carried out without delay. I had determined that the expedition should start for the south from Tewfikeeyah on 1st Dec., at which time the Nile would be full, and the wind strong from the north. As Tewfikeeyah was nearly half way in actual distance from Khartoum to Gondokoro, I trusted that we should have time to accomplish the work of cutting through the marshes, and be enabled to pass the shallows before the river should begin to fall. I therefore sent Mr. Higginbotham to Khartoum to engage vessels; I followed on 15th September, with the No. 10 steamer towing my diahbeeah--and ten empty vessels to bring up a supply of corn. We reached Khartoum on the 21st Sept. at 9.30 a.m., to the astonishment of the governor and population, who could not understand why I had returned. I now met for the first time the Vicomte de Bizemont, who was to accompany the expedition. This gentleman had been intrusted by the Empress of the French with a very gracious token of her interest in the expedition, which he presented as a gift from her Majesty to my wife. I now heard for the first time the startling news of the war between France and Prussia. I found Dr. Gedge alive, but in a deplorable state of health. It was impossible for him to travel north, therefore he was carefully attended by the Greek physician to the forces, Dr. Georgis. I at once saw that there was no hope of recovery. Mr. Higginbotham had been exceedingly kind and attentive to his wants.