A. F. McGill, F.R.C.S. (_The Lancet_, February 4, 1888). The operation consists of two parts: (1) The opening and drainage of the bladder; and (2) The removal of the prostatic valve which prevents the egress of the urine. A full sized silver catheter, curved according to the nature of the case, is passed into the bladder, its contained urine withdrawn and its cavity washed out with a warm saturated solution of boracic acid till this is returned clean and unchanged. The usual rubber rectal bag is now introduced and filled with fourteen ounces of water. The bladder is now rendered prominent by injecting it with a sufficient amount of warm boracic acid solution. The catheter is retained in the bladder, and the fluid with which the latter has been distended, prevented from escaping. The usual median supra-pubic incision is now made, the bladder exposed and made to project into the abdominal wound by depressing the catheter. A large curved tenaculum is now passed transversely into the bladder, touching as it goes the point of the catheter. An incision is now made longitudinally through the bladder wall, the fluid being prevented from escaping by plugging the opening with the finger. The bladder is now seized with nibbed forceps, and applied on each side of the incision, the catheter is withdrawn from the urethra and the bag from the rectum, and the first part of the operation is complete. The interior of the bladder and its neck is now examined, in order to ascertain the exact nature of the prostate enlargement. A pedunculated middle lobe can be removed with the curved scissors, but in the case of a sessile middle lobe, this must be assisted with the finger and forceps. The “collar” enlargement is removed with greater difficulty. In order to insure the patency of the urethra, it is advised to pass the forefinger into the canal as far as the first joint. It is claimed that the hæmorrhage is not excessive. The operation completed, drainage is effected by passing a rubber tube out of the abdominal wound, the latter being partially closed by a point or two of suture. The tube is removed after forty-eight hours. The author’s experience is limited to five cases, four of which have proved successful, while the fifth case is still under treatment. He claims that, in cases operated upon early, before diseased bladder or surgical kidney have developed, a radical cure may confidently be expected.