In September, a great many cases occurred in the neighbourhood of Rosetta, and in the camp at El Hammed; but many of these were the sequelæ of the fever contracted at Rhoda. In October, the number of cases was greatly on the increase. The rainy weather with which the month of November began, and which continued during the following months, brought a prodigious increase of dysenteric cases. In the general return of the first week in November, there appear one hundred and sixty cases, and one hundred and twenty-three of these are Europeans. Most of the natives were from the Bengal volunteer battalion. In the first general return in December appear two hundred and nineteen; of which one hundred and forty are Europeans. After leaving the encampment at El Hammed, and getting into dry, comfortable barracks, at Alexandria, the disease occurred more rarely in the army. In the last return of January, only one hundred and sixty cases are seen. In the last return of February, the total number of dysenteric cases in the army was fifty-four, and only twenty-two of these were natives of India. In the last return of March, there appear nineteen cases, fifteen of which were Europeans. There are only twenty cases in the last return of April, and these cases are equally divided between the Europeans and Indians. At the time of embarkation the number was even less than the above. The disease was more frequently met with among the European artillery, and in the 61st regiment, than in any other corps. Among the native corps, the Bengal battalion had more of the disease than any other. I made inquiry, but could find no reason that could with probability account for this.[8] I have continued longer on the subject of dysentery than was at first my intention. I will confess, that I think it is a subject on which I could with more propriety speak than on any other. My opportunities of seeing the disease have been no common ones. Rarely, I believe, has it fallen to the lot of an individual to see so very many cases of one disease in such a diversity of climate and situation. In the 88th regiment, during the course of upwards of ten years, I saw the same men the subject of this disease on the continent of Europe, in America, in both extremities of Africa, and in India. Of late, it has afforded me not a little amusement to review my notes as well as my journals of practice in this disease, in all these quarters. I have now both given some account of the endemic diseases which we met with in Egypt, and offered a few remarks on those diseases which were most prevalent in the army. They are the diseases which constantly prove the most fatal to an army in India. The few which now remain, or (if I may be allowed the expression) the minor diseases, will not long detain us. PNEUMONIA AND RHEUMATISM