Developmental Disorders of Mentation and Cerebral Palsies.

The book is a compendium of clinical and pathological material, collected largely in state schools for the mentally defective. The selection of cases primarily of feebleminded patients undoubtedly influences the material reported, and this is probably especially true of the section on cerebral palsy, in which the disease seems to this reviewer to be too rigidly divided into different clinical types in accordance with popular medical practice at the present time. Clinical histories and pathologic findings of 37 examples of cerebral palsy are presented and divided into three pathological types: diffuse cystic degeneration of the white matter of uncertain etiology, mantle sclerosis presumably due to arterial lesion, and a large group which is conceived of as being the result of stasis in the vein of Galen with a combination of cortical injury and status marmoratus. This collection of cases is an important contribution to the pathology of cerebral palsy but