SUBJECT INDEX 



1243 



Guinea pigs, anemia induced by gamma 

 radiation in, 1052, 1054-1056 

 survival of, 1052 

 broad developmental divisions of, 863 

 carcinogenesis in, 1152, 1153, 1155, 



1164, 1174 

 effect of bone-marrow injections from, 



on irradiated mice, 1075 

 irradiation of, during fetal period, 

 894, 897-898 

 during period of major organo- 

 genesis, 869, 874, 879, 880 

 during preimplantation period, 864- 

 866 

 LD 6 o for, 930-931, 969 

 Gynandromorph, 359, 514, 515 



H 



Habrobracon, 384, 388, 453, 454, 510, 643, 



657, 667, 683, 688, 689, 799, 808 

 Hair, 1119, 1122 

 epilation, 1123 

 permanent, 1123 

 temporary, 1123 

 graying of, 998 

 radiation effects, 997 

 Xrays, 1123 

 Hair follicles, carcinogenesis in, 1176 



destruction of, 1122 

 Half deaths, 426 

 Half-value layer, 104 

 Hamster, LD 5 o for, 930 

 Haploid cells, 335, 642-644, 668, 683 

 Hassall's bodies of thymus, 1105 

 Hatching, inhibition of, 325, 334-335 

 Hazards of radiation, human, 854-856, 

 910, 913 

 (See also Radiation illness; Radiation 

 injury) 

 Head protection, 926 



by shielding, 1070, 1072, 1073 

 Heart-muscle damage, 981 

 Heart rate, 981 

 Heavy particles, deflection of, 89 



penetration of, 87 

 Helianthus, 589 

 Helium, 559 

 Hematocrit, 964 



effect of radiation on, 1037, 1038, 1055 

 and phosphorus 32 , 1057 



in cobalt-induced polycythemia, 

 1067 

 Hematologic effects of ionizing radia- 

 tions, 1029-1090 

 Hematopoiesis, radiation effects, 960-969 



in testis, 1116 

 Hematopoietic cells, regeneration of, 1 100 



Hematopoietic tissues, radiosensitivity 



of, 929 

 Hemin synthesis, 962 

 Hemoconcentration, 969-970 

 Hemocyanin, 295 

 Hemocytoblasts, 1099, 1107 

 Hemoglobin, 295 



effect of radiation on, 1037-1041 



(See also Erythrocytes) 

 Hemoglobin concentration, 964 

 Hemolysis, 961 

 Hemophilia, 460 

 Hemorrhage, 922, 923 



induced by radiation, 1039-1040, 1045- 

 1047, 1056, 1072 



intestinal, 983 

 Heparin injections, 967 

 Heparin-like material, circulating, 967 

 Hepatic blood flow, 977-978 

 Hertzian waves (radio waves), 3, 14, 20 

 Heterochromatic regions in chromosomes, 

 635, 636, 645, 651. 652, 663-665, 

 677-681 

 Heterochromatin, 361, 448, 450, 493 

 Heterochromatin blocks, 378, 447 

 Heterophil leukocytes, 1103, 1106 



abortive rise in, 1034-1036 



effect on, of fast neutrons, 1042-1044 

 of gamma radiation, 1050-1052, 

 1055, 1056 

 Heterosis, 429 

 Heterozygote, 402 

 Hibernation, 930 



radioresistance during, 977 

 Hiroshima, bone-marrow studies, 1101 



leukemia incidence, 1163 

 Histamine of plasma, 975, 980 

 Histidine, 292 

 Histology of damage following prenatal 



irradiation, 880, 897, 904, 912 

 Hit theory (see Target theory) 

 Homozygote, 402 

 Hormone imbalance, 1167, 1170 

 Horse serum, 935 

 Human cells, 629 

 Human fetus (see Fetus) 

 Human radiation effects (see Man) 

 Human subjects, 338, 339 



(See also Man) 

 Humoral theory of regeneration, 1077- 



1081 

 Hyaline membrane in lung, 1130 

 Hyalinization of collagen in skin, 1122 

 Hyaluronidase, 968, 979 

 Hybrids, introgressive, 456 



species, 553 

 Hydration of ions, 232, 242-243, 247, 

 250-251 



