Part - 2 Stereoscopes: a comprehensive and profusely illustrated overview of stereoscopes in use at the time of publication (1903). 

Part 3 - Binocular Phenomena and Demonstrating Instruments: including binocular experiments and illusions for optical toys, and interesting uses of stereoscopy in many different scientific fields, from astronomy to surveying. There is also a chapter on The Commercial Side of Stereoscopy, a list of books on stereo available at that time, an index, and 12 pages of interesting stereo product advertisements from 1903. 

This first book in Reel 3-D's Historical 3-D Reprint Series is full of useful information on practical stereo for today's 3-D photographer. It is interesting to see how this subject was approached more than 90 years ago, and to discover how much, and yet how little, has changed. Today we take our 3-D camera equipment so much for granted that we don't think about the underlying phenomenon of stereoscopic vision: how it works, and what mechanical and technical goals have to be achieved to make it all successful. Photographic inventor Theodore Brown did contemplate these questions and Stereoscopic Phenomena of Light and Sight was the result. Originals of this book are rare, and this is the first reprint produced since 1903 . The technical and historical information is still most useful and extremely fascinating from today's perspective. 

128 pages, soft cover.