The distance from Bagamoyo to Simbamwenni we found to be 119 miles, and was accomplished in fourteen marches. But these marches, owing to difficulties arising from the Masika season, and more especially to the lagging of the fourth caravan under Maganga, extended to twenty-nine days, thus rendering our progress very slow indeed--but a little more than four miles a-day. I infer, from what I have seen of the travelling, that had I not been encumbered by the sick Wanyamwezi porters, I could have accomplished the distance in sixteen days. For it was not the donkeys that proved recreant to my confidence; they, poor animals, carrying a weight of 150 lbs. each, arrived at Simbamwenni in first-rate order; but it was Maganga, composed of greed and laziness, and his weakly-bodied tribe, who were ever falling sick. In dry weather the number of marches might have been much reduced. Of the half-dozen of Arabs or so who preceded this Expedition along this route, two accomplished the entire distance in eight days. From the brief descriptions given of the country, as it day by day expanded to our view, enough may be gleaned to give readers a fair idea of it. The elevation of Simbamwenni cannot be much over 1,000 feet above the level, the rise of the land having been gradual. It being the rainy season, about which so many ominous statements were doled out to us by those ignorant of the character of the country, we naturally saw it under its worst aspect; but, even in this adverse phase of it, with all its depth of black mud, its excessive dew, its dripping and chill grass, its density of rank jungle, and its fevers, I look back upon the scene with pleasure, for the wealth and prosperity it promises to some civilized nation, which in some future time will come and take possession of it. A railroad from Bagamoyo to Simbamwenni might be constructed with as much ease and rapidity as, and at far less cost than the Union Pacific Railway, whose rapid strides day by day towards completion the world heard of and admired. A residence in this part of Africa, after a thorough system of drainage had been carried out, would not be attended with more discomfort than generally follows upon the occupation of new land. The temperature at this season during the day never exceeded 85 degrees Fahrenheit. The nights were pleasant--too cold without a pair of blankets for covering; and, as far as Simbamwenni, they were without that pest which is so dreadful on the Nebraska and Kansas prairies, the mosquito. The only annoyances I know of that would tell hard on the settler is the determined ferocity of the mabungu, or horse-fly; the chufwa, &c., already described, which, until the dense forests and jungles were cleared, would be certain to render the keeping of domestic cattle unremunerative.