gelatino-chloro-citrate

Updated: May 8, 2025

This would indicate that an unusually large proportion of the toned image consists of gold, and this idea is confirmed by the fact that to tone a sheet of gelatino-chloro-citrate paper requires several times as much gold as to tone a sheet of albumenized paper.

Various - Scientific American Supplement, No. 586, March 26, 1887