Case of Melanosis — False Membrane Passed per Anum

Abstract

clearer on percussion, as it contained chiefly air. The reason probably was, because the air was confined, on the principle that if the air-hole in a drum is stopped, the sound is deadened. Left thorax occupied by air, and five or six ounces of thick pus. The entire walls lined with a layer of purulent coagulum 4-6 lines thick. Dr. Chapin, of Winchester, who was present, suggested that this might be one cause of the dulness. Left lung condensed, caruilicd, flattened and bound down by adhesions. It lay on the