thick or winged lines
*
Plate VII. Comparison of the Spectra of Aluminium, Calcium, and the Lenarto Meteorite
(Wave Length 3,930—4,300)
(full bleed image, tidied in lower right)
ex J. Norman Lockyer (1836-1920 *). Studies in Spectrum Analysis. London, 1878
Harvard copy, digitized October 3, 2005
—
thickening lines...
increasing the number of their lines
*
as a cloud of dust
*
tags:
as a cloud of dust; grays; lines; spectra; thickening
J. N. Lockyer