Case 192. —An Arab from the Plains, about 55 years of age, came to the hospital April 17, complaining of pain in urinating; had suffered for some time, as many scars of the hot iron over the region of the bladder testified. He was of good build, fairly nourished, but had a terrible dread of the knife, and would not listen to the operation by lithotomy. I explained to him that if the stone was sufficiently friable I could remove it without cutting, provided it was not too large to be grasped by the lithotrite. So on those conditions he became an inmate of the hospital, and the work of crushing began. The stone was found to be very large, but I was able to grasp and crush portions of it. After crushing as much as I thought advisable at one sitting, I proceeded to withdraw the lithotrite (Thompson's), which