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Sign up for free Log in. Entered at Stationer's Hall, London, Eng. Many are the text-books on this important subject. Some are mere compilations of older facts and some are written by men that soar so high above the field of the practical work of the opthalmologist that their abstract scientific investigations lose almost all contact with these practical workers.
The present book is neither a mere compilation nor an abstract theoretical investigation, but a collection of all the old and new scientific facts that have any bearing on the practical work of the oculist and optician. It is written by a man who lately has probably done more original work in this line than any other since Helmholtz and Bonders, and who, furthermore, has been in constant contact with practical ophthalmology.
Tscherning, who was born in Denmark in , studied ophthal- mology at Copenhagen under the philosophic mind of Hansen Grut. Since he has been adjunct-director of the laboratory of opthalmology at the Sorbonne, where, since the deplorable disability of Javal, he himself has performed the functions of the director.
