The literature on the drawings of schizophrenics is mainly concerned with their spontaneous artistic production. Some schools of psychotherapy use drawings systematically as an approach to the patient, i.e., as another way of obtaining free association from them. But apart from this, little work has been done on experimental drawing for diagnostic purposes. There is, however, the interesting work carried out by Mohr (1), who analysed drawings of mental patients of various kinds, and demonstrated in their production numerous clinical symptoms. His paper, classical as it is, has not stimulated many others to follow his lines. Sapas (2) collected systematically drawings of mental hospital inmates, which, in fact, were tests of visual memory. She followed, in her investigations, the technique originally proposed by Hickson in his work on The Mental Fingerprint. Lately, Becker (3) has contributed to the problems involved, in a systematic study, which will be referred to later.