Some of the ships have brought down the horses in magnificent condition. The Yorick, which has carried the horses of the officers of the 33d, is a model of what a horse-ship should be. The animals are ranged in stalls along the whole length of her main-deck, and the width is so great that there is room for a wide passage on either side of the mast. These passages were laid down with cocoa-nut matting, and the animals were taken out every day—except once when the vessel rolled too much—and walked round and round for exercise. In consequence they arrived in just as good condition as they were in upon the day of starting. While I am writing, the Great Victoria is signalled as in sight. This vessel contains, it is said, the Snider rifles, the warm clothing, the tents, and many other important necessaries. Her arrival, therefore, will greatly smooth difficulties and enable the troops to advance. At the time that the above letter was written I had only been a few hours upon shore, and was of course unable to look deeper than the mere surface. I could therefore only assign the most apparent reason for the complete break-down of the transport train. The disaster has now become historical, and rivalled, if it did not surpass, that of the worst days of the Crimea; and as for a time it paralysed the expedition, and exercised throughout a most disastrous influence, it is as well, before we proceed up the country, that we should examine thoroughly into its causes. After a searching inquiry into all that had taken place prior to my arrival, I do not hesitate to ascribe the break-down of the transport train to four causes, and in this opinion I may say that I am thoroughly borne out by ninety-nine out of every hundred officers who were there. The first cause was the inherent weakness of the organisation of the transport train, the ridiculous paucity of officers, both commissioned and noncommissioned, the want of experienced drivers, and the ignorance of everyone as to the working of a mule-train. The second cause was the mismanagement of the Bombay authorities in sending animals in one ship, drivers in another, and equipments scattered throughout a whole fleet of transports, instead of sending each shipload of animals complete with their complement of drivers and equipments, as was done by the Bengal authorities. The third cause was the grossly-overcoloured reports of the officers of the pioneer force as to the state of water and forage, and which induced the Bombay authorities to hurry forward men and animals, to find only a bare and waterless desert. The fourth reason was the conduct of the above-mentioned officers in marching with all the troops to Senafe, in direct disobedience of the orders they had received. This last cause was the most fatal of all. In spite of the first three causes all might, and I believe would, have gone tolerably well, had it not been for the fourth.