Index 



285 



Deep therapy field, isodose curves 

 for a, 218 



Degenerating cells, 164 



Depressant, action of, 15 



Determination of the skin erythema 

 dose, 88 



Developing influence of physics in 

 biology and medicine, 10 



Differentiating cells, 164 



DiiTraction analysis, X-ray, 19 



Dilute solutions by radiation, de- 

 composition of, 122 



Direct beam. 250 



Distortion caused bv rotation, 

 80 



Distribution of brain damage from 

 rotation, 79 



Division of bacteria, inhibition of, 

 161 



Dosage, calculation of heat, 64 



Dose and biological response, physi- 

 cal. 87 



— contour projector, 225 



— contours, irradiation field pre- 



arranged using, 220. 221 



— distribution, British and Ameri- 



can values. 228 



— distribution, means of realizing a 



desired, 226 



— distribution, summation of, 



224 



— distribution theory and practice, 



228 



— distributions, illustrative, 219 



— finder. 225 



— of radiation. 179 

 Dosemeters, 183 

 Dosimetry, 87 



Double-beam cathode-ray oscillo- 

 scope, 41 



Drug action, biophysical factors in. 

 13 



— action, the analytical approach 



to the study of, 14 

 ■ — systems on insect cuticle, effect 



of mixed. 21 

 Drugs by insects, uptake of. 21 

 — , surface and narcotic activity of, 



15 



E 



Economy quotient, Unger's, 206 

 Effect of permeability on tanning, 



25 

 Effects of different radiations on 



animal embryonic tissue and 



tumor tissue, 132 



— of mixed drug systems on insect 



cuticle, 21 



— of physical factors on volume 



dose, 202 



— of radiation on normal tissue, 



summary of, 103 



Efficiencies of ionizing radiations, 

 relative, 127 



Efficiency of ionizing radiations for 

 the inactivation of viruses, rela- 

 tive, 124 



Einstein's equation for the unit 

 energy of radiation. 177 



Electric blanket. 61 



Electrical jugular pulse tracing, 45 



Electrocardiogram synchronizing, 

 51 



Electrocardiography, 38 



Electroencephalography, 46 



Electromagnetic radiation, 62. 63 



Electromyography, 37 



Electron microscope, 54 



Electronic pH meters, 51 



— stimulators and chronaxie 



meters, 37 

 Electronics, 3 



— in medicine, applications of, 34 

 Embryonic tissue, the indirect ef- 

 fect of radiation on, 100 



Emission, corpuscular. 179. 188. 190 

 Encephalograph, Marconi, 47, 48 

 Encephalophone, 48 

 Energy absorption and biological 

 response. 87 



— absorption and the theory of the 



thimble chamber, true. 185 



— absorption in radio therapy, 



total, 194 



— quanta, 62 



Enzyme activity and permeability, 

 27 



