This is the first volume of a system of diseases of the eye written in the English language, and embraces the most advanced theoretical and practical views on the subject. The broad pages and large type make it a pleasure to the eye; while the beautiful illustrations are creditable alike to the author and the publishers. This is intended to be an encyclopedia on the subject of diseases of the eye and will be of service not only to ophthalmologists and special students, but for reference by the general practitioner as well. We notice with pleasure that the subjects of dioptrics, perception of light, binocular vision, have been given to Americans. It is well-known that in these subjects our countrymen have taken the lead. We notice the death of Dr. Rider, who wrote the chapter on the embryology of the eye, and who died before the issue of the volume.