Their Use and Equivalents (Classic Reprint)
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|Format: ||Paperback, 166 pages|
|Other Information: ||Illustrated|
|Published In: ||United States, 01 September 2015|
Excerpt from Prisms: Their Use and Equivalents
The preparation of this book on "Prisms, their use and equivalents," has been prompted by the request of many students and correspondents, though it is written primarily for those who may desire a more extended knowledge on this branch of refraction than is contained in works on Ophthalmology.
In fact, this volume is in part a compilation of the writers lectures on prisms delivered during the winter course at the Philadelphia Polyclinic.
The author's double prism, a new and delicate test, for the detection of errors of muscular imbalance whether of small or great amount, is incorporated in the text.
To make the subject-matter more entertaining, the writer has not limited himself to the consideration of prisms in ophthalmic practice alone, and by omitting mathematic formulas and inserting many illustrations, the text is made easy of comprehension.
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22.86 x 15.24 x 0.89 centimetres (0.23 kg)|
15+ years |