Binocular Balance and the Genothalmic Kratometer: a lecture delivered at the office of General Optical Company inc Boston Mass.

Historical Significance: Peckham was an optometrist in Connecticut, USA. This is an instruction manual for use of the Kratometer. See other books on the Kratometer Cat No 240 and 245 and other books by Peckham Cat No 305. Peckham seems to have been one of those enthusiastic thinkers and teachers in optometry with a gift for writing. He published a number of books including 'Binocular balance and the Genothalmic Kratometer' a lecture delivered at the office of General Optical Company, Inc., Boston, Mass. ca. 1925; 'Binocular balance' 1926; 'The modern treatment of ocular imbalances with the genothalmic kratometer'1926; 'The non-operative correction of squint' :'Manual of instruction for the Squint-Korector' 1930; 'The study of eye-movements during alternation in binocular vision' 1933 and 'The principles of binocular fusion and stereoscopic vision'. 1940. We have several of these books in the archives See Cat No 240 and 245. The archive has a Kratometer. See Cat No 913