This text-book has been referred to by reviewers as the "Bible of Ophthalmology." This new edition is the same complete work that former editions have been. One notices some changes due to recent advances in general medicine and in the specialty of ophthalmology. The editor of the American edition has made additions to the chapters on external eye muscles and refraction which are important, giving as they do the views of a competent and conservative American ophthalmologist. These additions can be recommended particularly to the younger American students of ophthalmology, and to foreigners, many of whom have obtained a wrong idea of our views on these subjects.