It has been claimed that the Chinese were not especially liable to mental disorders, at least in their native country, where the existence of any very great number of insane has been denied. It seemed to be assumed that their particular type of non-progressive civilization, and the stereotyped habits and modes of thought, while not favoring the highest intellectual development, were equally unfavorable to tendencies toward pronounced mental disease. The fact, too, of the comparatively low value set on human life in China was thought to be a possible cause for the non-survival for any long period of helpless, demented individuals, who without care must quickly succumb, and the accumulation of insanity, that is one of our most serious social problems, has been thought, therefore, not to be one that troubled to any extent Chinese economists or statesmen. This last may be true, but the number of insane in China