On our arrival at Point de Galle, in Ceylon, we found that the disease was unknown in his Majesty’s 19th foot, among the Sepoys who came from Bengal or Madras; in the Malay corps: and, as far as I could learn, among the inhabitants. During our stay in Ceylon, a few cases made their appearance in the 86th and 88th regiments on shore. On sailing from this island for the Red Sea, only three hundred and sixty men, of the 88th regiment, with the artillery, were embarked in the Minerva. Two companies of the 88th were embarked in a small vessel, the Fancy. Another vessel, the Hope, was provided for the detachment of the 86th regiment, and two officers of the 88th were embarked with them. Soon after sailing from Ceylon, the Guinea-worm made its appearance among the 88th, both in the Minerva and Fancy: in the Minerva, particularly, it increased with alarming rapidity. By the time we reached the Straits of Babelmandel, we were in a most alarming state. Of three hundred and sixty men, whose services we had reason to expect daily might be required, one hundred and sixty-one were at this time crippled and laid up with this loathsome disease. Though contrary to every account which I had had of the disease, many circumstances at this time led me to suspect that it was infectious, and I, at length, thought it prudent to treat it as such. The officers remarked, that it prevailed most in particular parts of the ship, and much more in some companies than in others. This, at length, so much struck the commanding officer, that the sick were separated from the sound: the men with the Guinea-worm were all placed on the orlop-deck, and the rest of the men occupied the gun-deck. At this time, too, extraordinary precautions, regarding cleanliness and ventilation, were adopted. Much lumber and luggage were stowed away, and the space between decks, which hitherto had been lumbered with it, was made open and clear, fore and aft. The decks were daily well washed with boiling water, and the nitrous fumigation was kept constantly going on throughout the ship. Besides the usual bathing three times a week, of all on board, the soldiers were made to wash their hands and feet regularly twice every day at the ship’s head. In a little time after adopting these measures, we could perceive the disease to diminish. The number of fresh cases reported, decreased daily; and at the time of our casting anchor in Kossier Roads, though there were on the sick list many bad ulcers from the Guinea-worm, no fresh case had appeared for some days before.