Stone in the Bladder

which are quite intelligible to an old hand in the game. His article suggests to me a few points of general interest. Sounding for Stone.?You can detect a large stone with any instrument you pass. It is the small ones of a few grains weight which are of interest. I have frequently failed to sound them in a patient, anaesthetised and with the bladder distended, with a sound. The moment I passed a small lithotrite, however, and opened its jaws, the pebble dropped into its grasp. The late Colonel Keegan, i.m.s., made the same observation, but did not publish it. I would suggest that, when examining a child, when the result is negative to a sound, the operator should not be satisfied of the absence of stone until he has searched