Presents list, December 13, 1894.

Abstract

In the last part of the paper the medical aspects of this research are discussed. I t is suggested that emotional syncope is due to paralysis of the splanchnic area, and a case is quoted where com­ pression of the abdomen immediately removed the syncopal condition. The same treatment, or that of elevation of the abdomen, is sug­ gested for conditions of shock, chloroform collapse, and after severe haemorrhage. Finally, a parallel is drawn between some of the results of this research in reference to monkeys and those obtained by Dr. George Oliver on man, by measuring the diameter of the radial artery with his ingenious instrument, the arteriometer.