no origins have been traced for many of the lines
*
Plate 12 (detail)
illustrating J. Norman Lockyer. “On the photographic arc spectrum of electrolytic iron.” Read November 23, 1893. Philosophical Transactions of the Royal Society of London, for the year 1894. vol 185. (1895) : pp 983-993, followed by tables through 1021
Princeton copy, digitized August 23, 2011
epigram ex p 997
tags:
distances; mountains
J. N. Lockyer, “On the photographic arc spectrum of electrolytic iron” (1893)