Light energy, its physics, physiological action and therapeutic applications (1904)
Cleaves, Margaret Abigail, 1848-1917 · New York, Rebman company;[etc., etc.] · leaf 542
of the compressinglens varies according to the contour of the anatomicallocality. If for the cheek, which yields readily to pressure,it should be convex, for the forehead concave, and for the CONCENTRATED ELECTRIC ARC LIGHT ENERGY. 497 temples plain. It must be held with firm and equable pres-sure,…