Title
Spectroscopist observing
Caption
Spectroscopist observing (top). Bottom, left to right, Absorption spectra of Indigo, Chromic Chloride, and Magenta. Lithograph
Date
20th century
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07103_460000208
License type
Rights managed
Available size
24,8Mb (2,2Mb) / 8,1in x 11,8in / 2444 x 3543 (300dpi)