London: Royal Society of London, 1883. Hardcover. First Edition. iv, , vii, -842 pp. 4to. Library binding, tan leather spine with gold embossed titling. Interiors clean, ex-library stamp on title page, and occurring sporadically within. Numerous folding plates that illustrate articles. Pages were trimmed slightly when rebound. Very Good.
First photographs of the solar spectrum in the infrared. "Extending his interests to spectroscopy, Abney was the first to suggest (1877) that stars with rapid axial rotation could be detected by broadened lines in their spectra - an idea later to have wide application. He then devised a red-sensitive emulsion and with it made the first spectroscopic analyses of the structure of organic molecules (1882) and the first photographs of the solar spectrum in the infrared (1887)." "Abney, William De Wiveleslie." Complete Dictionary of Scientific Biography. 2008. Encyclopedia.com. 1 Mar. 2016