SUBJECT INDEX 



1249 



Mortality, prenatal, and irradiation, dur- 

 ing period of major organogenesis, 

 862, 868-874, 888, 890, 904, 912 

 during preimplantation period, 

 862, 864-868, 872, 911-912 

 Mosaics, 481, 507, 513, 514, 560 

 in Drosophila, 648, 649, 653, 661 

 tobacco, 510 

 Motility of intestine, 985 

 Motor excitability, 995 

 Mouse, 336, 337, 390, 432, 459, 561, 583, 

 776, 777, 797, 806, 809 

 broad developmental divisions of, 863, 



909 

 carcinogenesis in (see specific site) 

 effects of radiation, during fetal period 

 of, 871, 894, 896-899 

 genetic, 825-859 

 during period of major organogenesis 



of, 869-892, 905-908 

 during preimplantation period of, 



864-868, 871 

 on reproduction, 826-831 

 LD 6 o for, 924, 930-931 

 mutation rate in, 850-856 

 Mouth, 1124 

 Mucous tissue, 1097 

 Multilobular nuclei, 1096 

 Multiple-hit, 133 



determination of number of hits, 134 

 Muscle, 1097 



carcinogenesis in, 1177 



effect of implants of, on radiation 



injury, 1073 

 radiosensitivity of, 929 

 striated, contraction of, 922 

 Muscle cell, radiosensitivity of, 1161 

 Mushrooms, 442 

 Mustard, nitrogen (see Nitrogen raus- 



Mustard gas, 415, 512, 514, 547, 548, 551, 

 579, 594, 600, 1094 

 derivatives, 424 

 Mutagenesis, and biological conditions, 

 552-555 

 and chemicals, 574-581 

 and infrared, 565-574 

 and physical factors, 565-574 

 selective, and radiations, 590-597 

 and temperature, 565-574 

 and ultraviolet radiation (see Ultra- 

 violet radiation) 

 and water and oxygen, 555-564 

 Mutants, achaete, 507 

 albino, 590, 591 

 alboviridis, 590 

 alboxantha, 590 

 Bar M2, 493 



Mutants, Beaded wings, 390 

 cubitus interruptus, 481, 487 

 bithorax, 454 

 dumpy, 454 

 histidineless, 537, 542 

 inositol, 594 

 kappa, 595 

 lozenge, 454, 507 

 Minute bristles, 449 

 mottled eye, 595 

 Notch, 494, 495 

 phage, 595 

 purine, 564 



R and Q type, 556, 591 

 scute, 452, 493, 507 

 streptomycin, 564, 587, 591, 592, 595 

 Stubble, 454 

 tigrina, 590 

 Truncate wings, 390 

 tryptophane, 592 

 viridis, 590, 591 



white, 454, 504, 507, 515, 516, 526 

 yellow, 504, 507 

 xantha, 590 

 Mutational spectrum, 590, 594, 596 

 Mutations, 121, 138, 249, 289, 303, 324, 

 333, 334, 352 

 accumulation of, 424-432, 855, 856 

 and activations, 490 

 and active radicals, 551 

 amorphic, 398, 597 

 antimorphic, 398 

 biochemical, 462 

 and carcinogens, 421-424 

 and centrifuging, 573 

 clustered, 523, 853 

 and cosmic radiation, 581-584 

 cryptic, 404 



deficiency, 449, 854, 855 

 delayed, 512, 514, 600 

 detrimental class of, 395 

 in different species, 410-412, 835, 836, 



844, 854-856 

 direct or abnormad, 398 

 dominant, 381, 402 

 elimination of. 424-432, 837, 839, 842, 



843, 846, 855, 856 

 and energy levels, 597 

 expression of, 424-432 

 and fluorescent substances, 541 

 fractional, 512 

 and gamma rays, 479, 487 



(See also Gamma radiation) 

 gene, 389, 394, 598, 630, 638, 675, 825, 

 843, 854 

 and abnormalities from irradiation 



of embryos, 903, 908, 913 

 and metabolic processes, 418-421 



