This revision of Tinker's popular and successful laboratory manual includes some new experiments but the main change is in emphasis on methodology and in the clarification of the formal procedures. This manual should be a most effective teaching tool.

Psychoanalysts and clinical psychiatrists who have reproached academic psychologists for their psychological “sterility” and lack of dynamic concepts can find the basis of their criticisms in laboratory manuals such as this of Tinker. Such a manual is used by literally thousands of college students. From laboratory courses built around such manuals 90 per cent of college trained Americans get their ideas and knowledge of academic psychology. There is nothing in such a manual which touches on