Chromogramme. The assemblage of three monochrome positives which control the coloured lights in Mr. Ive's photo-chromoscope, now called by him Kromskop (q.v.).
Chromotype. See Chromatype.
Chrono-Photography. The taking automatically of photo-graphs at regular intervals for such devices as the lantern zoetrope. (See Zoetrope.)
Chrysotype. An obsolete process: paper charged with the double citrate of iron and ammonia is exposed, and then immersed in a solution of chloride of gold, whereby a permanent purple print is obtained, which only needs washing.
Cinematograph. This is the name most frequently applied to a lantern device when used for showing photographs as in
motion, the central principles of such device being explained in another place. (See Zoetrope.) During the interval of five years which jhas elapsed since the issue of the seventh edition of this Dictionary, the cinematograph has steadily grown in popularity, and at the present time those in London places of entertainment,often see on the screens a rehearsal of the notable activities of.the same day.
Compact and convenient cameras for making the exposures on