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This is a book written for laymen and is intended as a practical reference for those who desire a concise and understandable answer to the many questions which arise concerning the eye. It could also be used as a simple "refresher" for the physician who seeks to explain the visual mechanism to his patients. Its form is that of an encyclopedia, with the subject matter arranged alphabetically. While this arrangement sacrifices a certain amount of readability, it makes reference to separate topics much easier. The book departs from the usual one of this type in that much space is given not only to the normal anatomy and physiology of the eye but to the exposure of quack remedies, fake eye washes and illegitimate use of "exercises" for near sightedness and diseases of the eye. There is also an interesting discussion of glasses and how they should be chosen. At this