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This book, while rather interesting, is a good example of the loose statements and careless reasoning characteristic of much of the recent literature of freudian or pseudo-freudian psychanalytic psychology. For example, in the preface, the author states that "many conclusions are drawn from what is purely hypothetical but in this work, for the sake of clearness, many of these assumptions have been stated as if they were facts." To treat assumptions as proved facts may apparently increase clearness, but it makes the conclusions valueless. In the preface, the author describes mentation as "the functioning of the brain cells"; on page 71, he defines it as "primarily the functioning of the cells of the associative areas of the brain to nerve impulses from the extero-ceptors and intero-ceptors." This is only one of many examples of inaccuracy and carelessness.
He defines manic-depressive psychosis as "a psychosis characterized by instability of the emotional