SUBJECT INDEX 



583 



Filters, miscellaneous, 147 



polarization intcM-fcrencc, 147 

 rotary disp(M\sion, 147 

 total internal reflection, 147 

 Fixation in cytochemistry, 234, 235 

 Fluorescence, 209n. 

 depolarization of, 13 

 of diatomic molecules, 3 

 long-lived, 7 

 of molecules in condensed phase, 3, 



7-9 

 quenching; of, 12-13, 28 



self-, 13 

 sensitized, 13 

 yield of, 5 

 Foot and mouth virus, 340 

 Formation, photochemical, of HBr, 23-25 

 Fractionated doses, 292, 293, 313 

 Franck-Condon principle, 2 

 Free radicals, 330 

 Freeze-dry method, 211, 212 

 Frequency factor of bimolecular reac- 

 tion, 11 

 Fuchsin, Schiff's reagent, 239 

 Fucus eggs, 394 

 Fungi, Aspergillus niyer, 372 



terreus, 369, 391, 399, 406, 411 

 Chaetomium globosum, 399 

 Neurospora, 406, 410-411, 413, 417 



conidia, 407, 413, 417 

 Penicillium chrysogenum. 410 



notatum, 395, 399, 432, 435, 439, 441, 

 446 

 survival curves in, 438, 445, 446 

 Trichophyton mentagrophytes, 406, 411 

 yeast, Saccharomyces cerevisiae, 395, 

 400 

 Streptomyces griseus, 394 

 yeast cells, 382,' 394 



G 



Gamma radiation, 355, 340 

 Co"", 370 



effect of, on invertebrate eggs, 298 

 lethal, on fungi, 444 

 mutagenic, on fungi, 444 

 on protozoa, 303, 310, 320, 321 

 radium, 370 

 Gasleria, 249, 253-255, 265 



induced chromosomal aberrations, 265 

 Genes, 374, 391, 411, 415, 416, 520 



mutation (see Mutations) 

 Germicidal action, 42 

 bacteria, 43 



Escherichia coli, 43—53 

 humidity, 43, 49, 53 

 susceptibility to kill, 43, 48 

 tubercle bacilli, 75 



Germicidal action, exposures, 51 

 conversion factors, 59 

 depreciation related to germicidal 



effectiveness, 66-67 

 injury, 47 

 intensity, and time reciprocal, 51-53 



unit of, 51, 59 

 kill units of, 49 



killing, logarithmic function, 48 

 lethal, lethe, 63.2 per cent, 43-49 

 mutation, 48 



molds, new species, 83-85 

 susceptibility, 43-47 

 and ventilation, 49 

 fimgi, 43, 47 



growth prevention, 47 

 mutation, 83-85 

 spore killing, 43, 47 

 logarithmic kill, 48, 49 

 svuilight, 50 

 wave-length function, 42 



of longer wave length, 45, 46, 50 



reactivation, 45, 50 

 of optimum wave length, 42 

 of shorter wave length, 44 

 tentative factors for mercury lines, 



44 

 2537 A mercury line unique, 46, 47 

 Germless seeds, 272 

 Growth cell, 288, 290, 303, 307, 311 



H 



Half life, 4 



of phosphorescence, 7-9 

 Heat, sensitization to, by radiation, 



317-318 

 Helium, 375 

 Hemagglutination, 349 

 Hemangiomas, 534 

 Hemoglobin, 210, 218 

 Herpes virus, 340 

 Heterokaryon method, 440 

 Heterokaryotic complex, 432 

 Higher plants, photoreactivation, 483 

 Histidine, 218, 336 

 Histone, 218, 223, 237 

 Hit theory, 337-343 

 Hormones, 505 

 "Hot" molecule, 6 

 Humidity affecting X-ray sensitivity, 



447, 448 

 Hydrogen, 375, 380, 381 

 Hydrogen peroxide, 380, 381, 412-414 



Inactivation, photochemical, of en- 

 zymes, 33-34 

 Inactivation dose, 335 



