The principles of light and color: including among other things the harmonic laws of the universe, the etherio-atomic philosophy of force, chromo chemistry, chromo therapeutics, and the general philosophy of the fine forces, together with numerous discoveries and practical applications .. (1878)
Babbitt, Edwin D. (Edwin Dwight), 1828-1905 · New York, Babbitt & Co. · leaf 367
. It is supplied with the blue, the yellow, the red, the purple,and the opalescent white glass, which last admits all the rays in asoftened refined form. The different styles of colored glass areall of the beautiful kind with foliated work, called crystalline glass. It is supplied with a small lens… … Fig. 170.The Chromo-Disc. lens may be used separately at times. Fig.170 represents the Chromo-Disc. Diameterat the smaller end about 5 inches, at thelarger end 15 inches, length 19 or 20 inchesfrom 6 to 7 ; material, tin with a Japan var-nish on the outside; 1, 2, 3, 4, is a frameabout 5 by 12…
Phototherapy · Color
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
