I was now visiting Suakin for the fourth time, and the Governor received me very graciously as an old acquaintance. He sent immediately for some camels, which I required for the continuation of my journey. He himself had to leave the town on the following day to visit his summer abode in the neighbouring mountains. There still remained to me four months before commencing my real journey from Khartoom, as the voyage up the White Nile could not begin until December or January; I resolved to fill up the interval by a tour through the mountains of South Nubia, for the purpose of accustoming myself to the heat and fatigue of a harmless climate, before exposing myself to the fever atmosphere of Khartoom and the Upper Nile districts. Just at this time of year, too, the valleys between the Red Sea and the Nile promised me a rich booty, and I hoped to obtain a remuneration for any toil on my part by the botanical varieties which were to be looked for on the elevated ridges. I could not do otherwise than rejoice in the prospect of escape from the glowing oven of Suakin towards the western horizon, where the mountain-chains, veiled in grey vapour, betrayed the refreshing rains which favoured the district and rendered it so preferable for my sojourn. At night was heard the roll of distant thunder, and the darkness was broken at intervals by flashes of lightning. On the 10th of September at daybreak all was ready. After the lapse of two years passed in the domestic comforts of Europe, it is not altogether easy to remount the “ship of the desert.” Our first day’s march was through a trying country. The plain indeed was uniformly level, but for twelve miles it was covered with such huge black boulders glowing with the heat, that progress was very difficult. After we had proceeded about nine miles from the town, we made a short midday halt under the miserable shade of some dry acacias, which were like the uncovered skeletons of parasols. As if in despair they stretched their leafless branches towards the sky, and seemed to implore for water. Exposed here in a leathern pipe to the wind, our drinking water soon cooled down to a temperature about 18° below the surrounding atmosphere.