Neurology today holds a position in the various medical centers of the world which varies from complete nonexistence to high and complex development. Invasion of the field of neurology by different types of clinicians, the rapid development of psychiatry, the late appearance of neurosurgery and the important recent advances in neurophysiology and neuro-anatomy, all help to account for this variability and demand a reconsideration of the scope of neurology.
The diseases of the nervous system present so many unsolved and intricate problems that in neurology, perhaps more than in any other branch of medicine, the sine qua non of advance is specialized study. This specialty, however, is often so subdivided that it ceases to be a specialty at all. In neuropathology lie the hidden clues which clinical advance must follow. Nevertheless, a knowledge of neuropathology, when present in a faculty of medicine, must often be sought in an isolated and