I have administered chloroform six times in female children whilst Mr. Fergusson performed lithotrity. The patients were three in number. I think the calculus all came away after the first operation, and the second was only an examination of the bladder. I administered chloroform also, on one occasion, to a lady whilst Mr. Spencer Wells repeated the operation of lithotrity. _Section of the Urethra in the Perinæum._ I have notes of 56 cases of this operation. A great proportion of them were performed by Mr. Fergusson, either in King’s College Hospital, or in private practice. Amongst the other surgeons whom I have assisted in this operation were the late Messrs. Guthrie, Bransby Cooper, and Avery. In a great number of the cases, it was impossible to get a catheter into the bladder until after the incision was made in the perinæum, and many of the operations were very tedious; several of them lasting above an hour. It is very desirable to apply the bandages in this operation, as in that of lithotomy, especially if the assistants are not numerous. _Other Operations for Stricture, etc._ I have notes of four operations in which the stricture was divided internally by a urethratome; and of two operations in which the orifice of the urethra was enlarged; and of nine plastic operations to restore deficiencies of the walls of the urethra, congenital or otherwise. I have memoranda of 66 cases in which I have administered chloroform for sounding the bladder or the introduction of a catheter. In catheterism under chloroform the patient, of course, lies on his back, which is indeed the position in which he ought to be during this operation, when chloroform is not administered.