Published by The Keystone,
the organ of the jewelry and optical trades,
19th & Brown Sts., Philadelphia, U.S.A.
Ocular Dioptrics—Functions of the Retina—Ocular Movements and Binocular Vision
By Dr. M. Tscherning
Adjunct-Director of the Laboratory of Ophthalmology at the Sorbonne, Paris
AUTHORIZED TRANSLATION
By Carl Weiland, M.D.
Former Chief of Clinic in the Eye Department of the Jefferson College Hospital, Philadelphia, Pa.
This is the crowning work on physiologic optics, and will mark a new era in optical study. Its distinguished author is recognized in the world of science as the greatest living authority on this subject, and his book embodies not only his own researches, but those of the several hundred investigators who, in the past hundred years, made the eye their specialty and life study.