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By Alfred. Cowan, M.D. Second Edition, thoroughly revised. Price, $4.75. Pp. 278, including index, with 172 engravings and 3 colored plates. Philadelphia : Lea & Febiger, 1945.

LeGrand H. Hardy, Reviewer

Arch Ophthal. 1945;34(2):172.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The first edition of Dr. Cowan's careful work on "Refraction of the Eye" was published in 1938 and was well received. This second edition, although it contains fewer pages, is really an amplification, since more material has gone into a different format. It is not simply a reprint. Every page has been carefully reviewed, and numerous deletions and additions have been made. Many of the engravings have been improved and clarified. In addition, the chapters have been rearranged to bring relevant and sequential material into closer relationship.

Any one who undertakes the task of writing a book on clinical refraction, particularly if it is to be used as a guide for beginners, faces great difficulties. All necessary optics can be quickly and effectively discussed. But the various methods to be used and solutions to be found for particular difficulties present a formidable array. The evaluation and application of such methods . . . [Full Text PDF of this Article]

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