The Pathology of the Eye.

In the second volume of this elaborate work Mr. Parsons has placed the science of medicine in general and that of ophthalmology in particular finder a deep obligation. He reviews and profusely illustrates the histology of the crystalline lens, the vitreous, choroid, retina, optic nerve, orbit and the lacrimal apparatus. It must be borne in mind that the histology spoken of refers not only to normal conditions but to pathologic ones, so that this work is practically a textbook dealing with abnormal conditions generally found in the structures mentioned. Probably the most valuable portion of the work is that touching the various tumors of the eye, and we know of no monograph on the subject that compares with it in a practical demonstration of the changes found in this class of tissue alteration. Although the micro-photographs and illustrations generally are no better in quality than those seen in other books