faint, trace, trace. no light.
*
Fig. 1
(cropped to square, excludes row and column headings; levels adjusted: 40 1.00 255)
illustrating Harry B. Weiser (*). “Crystalloluminescence.” Journal of Physical Chemistry 22 (1918) : 480-509
Pennsylvania State University copy, digitized April 10, 2013
faint
fairly bright
faint
very faint
trace
trace
fairly bright
fairly bright
flash
no light
no light
faint trace
fairly bright
few sparks
no light
very faint
faint
no light
ex Table VIII. Experiments with Potassium Chloride
p 504
tags:
crystalloluminescence; effect of stirring; light; no light; lightlessness
H. B. Weiser