Mental Abnormality And Deficiency'. (An Introduction To The Study of Problems of Mental Health.) By Sidney L. Pressey And Luella Cole Pressey. New York:  The Macmillan Company, 1926. Pp.  356.

Since there has been so much literature produced lately concerning mental abnormalities and mental hygiene, at first glance this book would seem to be superfluous, but when one peruses its pages carefully, the impression is gained that the authors have done a real service to education. In writing this book they have had two major purposes; the first has been an attempt to arrange material for the college course which would give in a practical way the necessary information concerning the problems of mental health, mental disorder and mental deficiency. In the second place they have endeavored to treat this material in a way that it would be of definite value to those interested in special fields of work in which the problems of personality and adjustment are frequently met. They have presented their subject in a way that will be easily understood by the average layman, since it is not too technical and deals with the several subjects in a practical common-sense way. Before going into the various parts of the subject itself, they summarize their general attitude as follows:

“In beginning the study of mental disease and deficiency there are three important features of this subject which one should first thoroughly appreciate: (1) the various forms of mental disease and disability, especially of the mild, preventable forms, are exceedingly common and