SUBJECT INDEX 



1259 



Secondary sex characters, 1118 

 Sedimentation rate of blood, 964 



effect of radiogold on, 1061 

 Sedimentation velocity, 295 

 Seedlings, pea, 341 



sunflower, 340 



Vicia, 340, 341 



wheat, 339, 935 

 Seeds, 939 



Segmental interchange, 367, 368, 847 

 Segregation, Mendel's law of, 355 

 Semilethal effects, 1005 

 Semipermeable membrane, 301 

 Semisterility, 825, 840, 842-850, 854 

 Sensitive area, 140, 283, 284 

 Sensitive volume, 130, 140 

 Sensitivity of cells, differences in, to 



ionizing radiations, 681-691 

 Separation of cartilage from bone, 1113 

 Sequoias, 583 



Sertoli cells, 828, 831, 1114, 1116, 1117 

 Serum, horse, 935 

 Serum phosphatase, 299 

 Sex and radiosensitivity, 933 

 Sex determination, 455 

 Sex ratio, 839, 840 



following prenatal irradiation, 877-878, 

 912 

 Shielding, 926 



of parts of pregnant females during 

 irradiation, 864, 901, 911 



spleen (see Spleen shielding) 

 Showers, cascade, 63, 70, 95, 111 

 Shwartzman phenomenon, 1003 

 Silkworm, 457, 510 

 Single-hit, 132 



Single-hit curves (see Dose effect, expo- 

 nential curves) 

 Situs inversus following prenatal irradia- 

 tion, 886, 888, 892 

 Skeleton, skeletal abnormalities, effects 

 of prenatal irradiation on, 882-887, 

 909 



(See also specific abnormalities) 

 Skin, 325, 337-338, 1119 



cysteine protection, 943 



damage following prenatal irradiation, 

 881, 886, 896-898, 912 



derma, 1119, 1120 



epidermis, cellular polymorphism, 1121 

 degeneration of, 1121 



epilation of, 1120 



epithelium, 1120 

 atypical, 1120 

 cessation of mitosis, 1120 



erythema of, 926, 976-977, 1120 



inflammatory reaction, 1121, 1122 



latent period in, 1121 



Skin, loss of elastic fibers in, 1122 

 mammary gland, 1123 

 necrosis, 1120 



nuclear polymorphism of, 1120 

 papilloma, 1175 

 pigmentation of, 1120 

 radiation effects, 997 

 plutonium, 1122 

 radium, 1122 

 yttrium 91 , 1122 

 radiosensitivity of, 929 

 sclerosis of, 1120 

 sebaceous glands, 1123 

 sweat glands, 1123 

 temperature of, 977 

 tumors, 1151, 1153, 1155, 1159, 1175- 



1177 

 ulceration, 1120, 1149 

 Skin glands and X rays, 1123 

 Skull abnormalities following prenatal 

 irradiation, 879, 881, 883, 887, 889, 

 909 

 Slow neutrons (see Neutrons) 

 Small intestines, 306, 307, 1124 

 Smear techniques in radiobiology, 632, 



635 

 Sodium, excretion of, 989 

 of plasma, 974 

 retention of, 971 

 of tissue, 972 

 Sodium fluoride, 941 

 Sodium hydrosulfite, 580 

 Sodium nitrite, 941, 945 

 Sodium space of intestine, 989 

 Sodium 24 , 1093 

 effect of, 1058 



on intestine, 1127 

 on spleen, 1 107 

 on thymus, 1105 

 toxicity of, 923 

 Somnolence, 995 



Sonic vibration, effect on radiation- 

 induced chromosome aberrations, 

 737 

 and mutation, 572 

 Soret band, 287 



Spatial distribution of ions, 194, 197 

 Species, radiosensitivity of, 930-934 

 Species heterozygotes, 456 

 Specific ionization, 87, 315, 920, 923, 

 1093 

 and carcinogenesis, 1146, 1147 

 as related, to oxygen effect on chromo- 

 some-aberration production, 752 

 to radiation efficiency in chromo- 

 some-aberration production, 732 

 Spectral analysis, 18 



