The prolific neurologist who has written several interesting works, largely for the layperson, now presents us with a study of the deaf population of the world. It is a thoroughly researched overview of its topic.

The book is divided into three sections of which the first is an investigation into the history of the deaf and their position in the world. It is a gruesome story. The “deaf and dumb” were mistreated in miserable ways. They were often considered intellectually retarded and put into the most menial of positions. Until very recent times little was done to help them, although there were some pioneers who eased their lot a bit. It was the widespread development of sign language that was of great benefit.

The second portion of the book is devoted to an appreciation of sign language. It is striking to learn that it is not merely mimicry nor signalling. It is a complete language, with its own grammar and syntax, capable of communicating the most subtle and abstract meanings. It is not confined to concrete terms or