The ascending general galvanic current should be employed for from 5 to 10 minutes. The surface board, connected with the negative pole, should then be applied for a few minutes successively to each of the affected joints. Iodine in some form should be added to the baths. CASE XXIV.* _Specific synovitis of knee-joint, with considerable articular and peri-articular effusion._ Mr. C., from the practice of Dr. SHEPPARD, aet. about 35. First saw patient at his house on Nov. 9th, 1873, in consultation with Dr. S. and Dr. HUTCHINSON, of Providence, R. I. Had been on mercury and iodide of potassium for a long time. When I first saw him, he had been incapacitated from work for about a year. Had been unable to leave the house for three months. The affected joint was very much enlarged, with little or no mobility, the condition being practically the same as true ankylosis. It was decided to substitute tonics for the specific treatment, and to administer galvanic baths. On Nov. 11th the first bath was administered, another on the 15th, and a third on the 19th. Considerable improvement in motility was then apparent. Two more baths, taken respectively on the 22d and 29th, effected some reduction in the size of the knee. The baths were continued to January 3d, 1874, when the effusion had become almost entirely absorbed, and the joint perfectly mobile. The patient then had been for some time taking daily walks, unassisted. He now (Jany. 3d) walks without any difficulty, has regained his normal vigor, and is perfectly well. IMPOTENCY.