Spectroscopist observing (top). Bottom, left to right, Absorption spectra of Indigo, Chromic Chloride, and Magenta. Lithograph

---

Size: 2444px × 3543px
Photo credit: © Photo12/Ann Ronan Picture Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., /, absorption, bottom, chloride, chromic, colour, device, indigo, left, light, lithograph, magenta., measurement, observing, scheme, science, spectra, spectroscopist, spectroscopy