AN EXPERIMENTAL STUDY OF THE COMPARATIVE MYDRIATIC EFFECT OF ATROPIA AND HOMATROPIA.Read in the Section on Ophthalmology, at the Forty-second Annmal Meeting of the American Medical Association, held at Washington, D. C., May, 1891.

Among the notable "anomalies of refraction" in the few years just past is the great divergence of opinion among ophthalmologists as to the comparative reliability of atropia and homatropia as mydriatics. It has been surprising to read the varying statements of different well-qualified observers as to the effect produced by the former of these agents; and particularly surprising is it to those who use homatropia with satisfaction to themselves and to their patients to find this drug pronounced absolutely unreliable. It is unnecessary to mention particular articles on the subject. We all recall many such. We also, many of us, recall the discussions that have occurred in this Section for several years past, and particularly at the meeting last year, when the discussions constantly returned to two topics, upon each of which the greatest diversity of opinion existed — namely, the advisability of correcting low degrees of astigmatism and the