FRIDAY, 2nd APRIL.--At Sibi there are enormous depots of all sorts of commissariat stores, provisions, and clothing, both for Native and English troops, all of which have had to be transported great distances, especially the grain and the clothing, as most of the former comes from Bengal, and nearly all the latter from England, or at nearest from Bombay. Thousands of pounds of grain is daily used to feed the transport animals who are in thousands--camels, horses, bullocks (both for carts and packs), ponies and donkeys. Besides these there are some 2,500 to 3,000 cavalry and artillery horses, and about 1,000 horses, the property of officers, to be fed every day, and as there is little or no cultivation in Afghanistan, some idea may be formed of the arrangements, the labor, and the expense which are required to keep this one matter of the forage supply in working order. Armies fighting in Europe can expect to draw a good proportion of their supplies from the country in which they are operating, but the fact that almost nothing required by European troops, and very few of the articles required by native soldiers are to be got in Afghanistan, renders a war such as that we are now engaged in, a fearfully difficult and expensive matter. We dined at the rough camp mess at Sibi at which 15 officers were present, and went to bed (in the open air) at 9 p.m., as we had to be up at 1 o'clock to pack our camels for a start at 2 a.m., as we proposed to march 14 miles to Muskaff. [Sidenote: Preparations for marching.]