1240 



RADIATION BIOLOGY 



Epidermis, degeneration of, 1121 

 friable, 1121 

 latent period in, 1119 

 loss of elastic fibers in, 1122 

 regeneration of, 1121 

 Epidermititis, moist, 997 

 Epididymis, 1116 



Epilation, 337, 919, 997, 1120, 1123 

 Epilobium, 553 

 Epinephrine, 977, 980, 991 

 Epiphysis of bone, 1108 

 Epithelioma radiosensitivity, 929 

 Epithelium, intestinal, 982, 983 

 radiation damage, 960 

 stratified squamous, 1124 

 Epoxides, 417 

 Erythema, 338, 1120, 1121, 1150 



of skin, 926, 976-997 

 Erythroblasts, 1009 



sensitivity to radiation, 930, 1036-1037 

 Erythrocytes, 960-901, 970, 974, 979, 

 1002 

 and bone marrow, 1099 

 chloride, 974 



chronic-radiation effects, 1048, 1049, 

 1136 

 and cutting of distal vessel of spleen, 



1069 

 on fragility, 961, 1039 



of red-cell mass, 1039, 1040 

 and hemolysis, 1039 

 of gamma radiation, 1050-1052, 



1054-1056 

 of radioisotopes, 1056, 1061 



strontium 89 and splenectomy, 1060 

 and spleen shielding, 1038 

 of X radiation, 1037-1041, 1067 

 in phenylhydrazine-induced ane- 

 mia, 1065 

 disappearance of, 979 

 fowl, metabolism, 1002 

 iron 59 uptake in, 1037 

 mass, 960 



morphological changes in, 1061-1062 

 nucleated, 305 

 tagged, 970 

 Erythropoiesis, ectopic, 963 



induced by phenylhydrazine and/or 

 bleeding, 1064-1066 

 inhibition of, 1037-1039, 1047, 1065- 

 1066 

 and spleen, 1107, 1108 

 Erythrosine, 542 



Escherichia coli, 417, 418, 420, 454, 537, 

 542-546, 549, 564, 572, 579, 587, 591, 

 592, 935, 940, 944 

 Esophagus, 1124 

 Ester linkages, 290 



Esterase, 300 



Estradiol, effect of, on peripheral blood, 

 1067 

 and modification of radiation injury, 

 1066-1067, 1077-1080 

 by cysteine, 1080 



and/or spleen shielding, 1079, 

 1080 

 Estrogens, treatment with, 935, 965 



(See also Estradiol) 

 Estrus suppression, 337 

 Ethanol, 942, 946 

 Ethyl alcohol, 580 

 Euchromatic region in chromosome, 645, 



663, 664, 677, 678, 681 

 Euchromatin, 361, 450 

 Evans blue, 971, 978 

 Evaporation, 36 



Exchange reactions, 205-206, 220 

 Excitation, 60, 193-194, 197-234, 920 

 of atoms, 30, 197-208 

 in condensed systems, 229-234 

 of diatomic molecules, 209-220 

 effects of, 32 

 energy sharing, 32 

 interatomic motion, 32 

 of polyatomic molecules, 220-229 

 Exercise, 934, 937, 946, 1005 

 External beta rays and thymus, 1105 

 Extracts, cell-free, effect of, 1082 

 Extremities, protection of, 926 

 Eye, latent period, 1131 

 in lens, 1136 

 radiation effects, 943, 998 



damage following prenatal irradia- 

 tion, 879-881, 883, 887-889, 

 891-892, 896-898, 909, 912 

 (See also specific abnormalities) 

 gamma rays, 1131 

 neutrons, 1131 

 X rays, 1131 

 Eye pigments, insect, 461 

 Eyelid carcinoma caused by Th02, 1158 



Fallopian tubes, 1117 

 Fast neutrons, 1033, 1042-1044, 1048 

 anemia induced by, 1043 

 biological effectiveness of, and X rays, 



1048 

 comparative effect of, and X rays, 1044 

 effect of intensity, 723Jf. 

 effects of, on abortive rise, 1043-1044 

 on chromosomes, 723^. 

 modified by oxygen, 747, 752 

 on morphological cell changes, 1044 

 on peripheral blood, 1033, 1042, 1043 



