Light energy, its physics, physiological action and therapeutic applications (1904)
Cleaves, Margaret Abigail, 1848-1917 · New York, Rebman company;[etc., etc.] · leaf 770
oduced a certain confusion and a certain blur by the(3 rays. A longer exposure is required when they are sup-pressed, but the results are better.2 A portemonnaie re-quires a day with a radiant source consisting of a few centi-grammes of radium salt enclosed in a flask of glass andplaced in 1 m.… … Fig. 46.—Radium-graph of a Mouse made by Radium in Twenty-four Hours.
