As the orientation and substance of neurology changes with new discoveries, it becomes increasingly difficult to produce a textbook which will be all things to all men. When "Merritt" first appeared in 1955, it was hailed (and justly so) as the single best textbook of neurology available. In the short space of 12 years, the fourth edition has now appeared, testifying to the efforts of the author to keep abreast of the rapid growth of the specialty.
The book is still directed to busy clinicians in all specialties with only as much neuroanatomical, neurophysiological, and neuropathological background as is needed to make neurologic syndromes understandable to nonneurologists.
In general the high level of excellence has been maintained. Some topics, eg, encephalitis lethargica, are discussed at greater length than would seem warranted today. On the other hand, it is indeed remarkable how up-to-date the book is in regard to some of