A Treatise on Glaucoma.

This edition appears in an elaborated form, entitled a treatise, and a veritable treatise it is. The entire subject of glaucoma—"a convenient clinical label for a large group of pathologic conditions, the distinctive feature common to all of which is a rise in the intra-ocular pressure"—is covered in a manner that cannot fail to elicit praise from any reader, no matter what divergent opinions he may hold. No thinking ophthalmologist will agree with Elliot in all of the details (otherwise he would not be a thinking ophthalmologist), but both sides of mooted questions are discussed in all fairness, and from these and his vast clinical experience, the author has drawn the conclusions on which he pins his faith. It would be well if the axioms expressed on page 140 could be emphasized: "(a) A mydriatic should never be used without first ascertaining the tension of the eye and the condition