The authors give a detailed account of the procedure in an experimental hygiene class for children between the ages of seven and fifteen. A set-up was established in which the children as a class were encouraged to discuss various elements of individual behavior. The authors feel that such open discussion makes children feel more secure. 'In discussing some of the mechanisms of behavior the child learns to understand himself and others better'; furthermore, the authors hold that when such opinions are 'freely expressed in the presence of an understanding and sympathetic adult they have a therapeutic value in relieving a child's sense of guilt and in helping him to lose his fear of adults'.