. Light energy, its physics, physiological action and therapeutic applications . ormer sizeunder radium, showed structure of malignancy still, but withfiber structure predominating. Microphotographs, casts,and models of these as well as other causes treated by Abbeform a part of the radium exhibit in the government build-ing of the St. Louis Exposition. Abbe concludes that thosemalignant cells which have escaped destruction and retro-grade change, show a striking quiescence, which may meandeath of the vital force which makes them malignant. Theauthor believes that on the theory referred to in
. Light energy, its physics, physiological action and therapeutic applications . ormer sizeunder radium, showed structure of malignancy still, but withfiber structure predominating. Microphotographs, casts,and models of these as well as other causes treated by Abbeform a part of the radium exhibit in the government build-ing of the St. Louis Exposition. Abbe concludes that thosemalignant cells which have escaped destruction and retro-grade change, show a striking quiescence, which may meandeath of the vital force which makes them malignant. Theauthor believes that on the theory referred to in ChapterVII. under the head of Physical Effects of Light, this wouldmean that the malignant cells which have lost their inner-vation and grown wildly have returned to more nearly their RADIUM. 743 proper atomic motion under the influence of the stimuluswhich has been imparted to them by the particles of theatoms of radium. It is not known what constitutes themalignancy of the cell, but the author believes that the ex-planation is to be found in a physical condition rather than. Fig. 49.—Diagrammatic representation of seed growth followingexposure to radium rays; 20 seeds in each exposure; I., withoutexposure, 17 seeds grew; II., exposure for 2 days, 11 grew; III., 3days, 9 grew; IV., 4 days, 12 grew; V., 5 days, 2 grew; VI., 6 days,1 grew; VII., 10 days, none grew. in that of a germ origin. It is in accord with much of ob-served fact, as to the effect of extreme stimulation in causingthe destruction of some cells, and moderate stimulation a 744 LIGHT ENERGY. regenerating effect upon others that they may be brought intothe line of orderly growth again. In connection with thestriking quiescence shown by malignant cells, Abbe statesthat one is reminded of the seeds which do not grow and themeal worms which are arrested in their development for anindefinitely long period. These experiments of Abbes arenotably scientific and convincing. They cannot but serveto stimulate careful cli
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