Any discussion on the epidemiology of mongolism is bound to cover a great deal of ground which is already well trodden. However, the subject is so complex and so many inaccurate or mutually contradictory statements have been published that Dr. Lilienfeld's work serves a useful purpose. The compiler of the present volume is an experienced epidemiologist and, for the most part, gives a clear account of the phenomena encountered. So much effort has evidently been expended on this that it seems worthwhile making a fairly careful examination, pointing out some things which appear to be obscure or which could be amplified with advantage.

This content is only available via PDF.
You do not currently have access to this content.