Excerpt from General and Practical Optics In this third edition of "General and Practical Optics" I trust that some of the faults of previous editions will be found remedied. The subject-matter has been revised, condensed, rearranged, and rewritten, to some extent, and considerable fresh matter has been introduced. Although primarily intended as a textbook for candidates for the examination of the Worshipful Company of Spectacle Makers, it is written also as a reference book for those engaged in spectacle work, for other students of Optics, and as an introduction to the study of more advanced works. In previous editions I acknowledged my indebtedness to Dr. George Lindsay Johnson and to Mr. H. Oscar Wood. Here again, and to an increased extent, I repeat my recognition of the invaluable co-operation of Mr. Wood in compiling and writing the subject-matter, and in revising and correcting the work. As stated before, I have endeavoured to cover, in this book and in "Visual Optics and Sight-Testing," all that is essential for the sight-testing optician. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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Excerpt from Practical Optics for the Laboratory and Workshop Although some of the devices mentioned are not yet to be found on the market, I have given scale drawings of such things (as, for example, optical benches), all of which have been found thoroughly practical, so that those who have a small workshop available may construct necessary apparatus for themselves. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Practical Exercises in Physiological Optics This book was written for the practical classes in Physiological Optics required by the regulations for the Diploma in Ophthalmology of the University of Oxford. I have conducted such classes for the last two years in the Physiological Laboratory, Oxford, for Professor Crotch. Hence the occasionally minute instructions with regard to particular instruments. But for the most part the descriptions are general, and it is hoped that the book may be found useful in other laboratories. I have omitted experiments which can be shown quite well during a lecture, and have included those from which more can be learnt by the actual doing of them. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.