SUBJECT INDEX 



643 



Scries, Fibonacci, 45 



Serology, gel-diffusion, 369, 370 



Serum 



alpha-2, 190 

 globulin, 348 

 Severity of disease, related to route of infection, 



393 

 Sex 



Chinese hamster, 496 

 chromosomes, 494 

 factor of E. coli, 459 

 linkage, 77 



lethals, 140 

 ratio, 144 

 Sexual recombination, 408, 459 

 Shaker-2, 75 



Shape determining effects of genes, 223 

 Shipping containers for mice, 555 

 Sib analyses, 205 



with unequal numbers in families, 207 

 Silver (si), 77 

 Simplification, antigenic, in transplanted 



tumors, 425 

 Single backcross, 57 

 Single cells 

 cloning, 468 



isolation of, for tissue culture, 450 

 Single exposure to radiation, 130 

 Size, population of limited, 46 

 Skin 



carcinoma of, 249 

 grafting, 371 

 Slides, preparation of, 504 

 Solubility 



and crystallography of hemoglobin, 31 1 

 of hemoglobin, 314 

 Soluble antigens, 366 

 Solutions, stock, 504 

 Somatic 

 eel! 



genetic relationship to microbial genetics, 407 

 genetic transfer between, 456 

 genetics of, 405 

 mutation rates in, 509 

 variation, 467 

 crossing over, 410, 460, 467, 468 



in transplanted tumors, 433 

 lethal effects of neutrons, 142 

 mutation, 416, 417, 460, 465 

 hypothesis of oncogenesis, 268 

 in Drosophila, 421 

 in maize, 421 

 variation, 423, 468 



studies through phenotypic markers, 410 

 Sources 



of gamma ray, 128 

 of radiation, 128 

 Space radiation, 129 

 Special sublines for study of mammary tumor 



agent, 251 

 Specificity, antigenic, loss of, 432 



Specific locus tests, 153 



for mutation, 137 

 Spermatogonial mutations, 141 

 Spleen, transplantation of tissue to, 330 

 Spotting, 326 



in guinea pigs, 169 



white, 330 

 Spread of pigment, 333 

 Squashing procedures, illustration of, 489 

 Staining of chromosomes, 480 

 Standard error of heritability, 209 

 Starch-block electrophoresis, 304 

 Starch-gel 



analysis, 322 



electrophoresis, 305, 370 

 Stemline, 507 

 Sterility, 133 



and gonadotrophic hormone, 270 



genetic, 279 



hereditary, from radiation, 134 



induced by radiation, 133 



partial, 135 



reciprocal translocation association with, 134 

 Sterilization of media, filter assemblies for, 506 

 Stimulus-intensity, relationship between, in two 



populations, 289 

 Stock (s) (see also Strains) 



for testing linkage, 75, 76 



genetic, 83 



multiple gene, 75 



solutions, 504 

 Stomach 



adenoma of, 250 



carcinoma of, in Mastomys, 254 

 Strains (see also Stocks) 



established, in mice, 86 



genetic, 83 



of Chinese hamsters in development, 116 



of guinea pigs 

 established, 1 12 

 in development, 112 



of rabbits in development, 118 



of rats, established, 103, 114 



of Syrian hamsters 

 established, 114 

 in development, 1 15 

 Stripped nuclei, 129 

 Subject-strain bibliography, 511 

 Sublines of tumors, comparison of pairs, 449 

 Substrains of mice, symbols for, 101 

 Sulphydryl analysis, 315 

 Sulphur mustard, production of pulmonary 



tumors with, 255 

 Summary of systems of mating, 41 

 Superiority, mean, 2 1 1 

 Survival 



effect of numbers of pathogens on, 389 



of mice related to dose of Salmonella typhi- 

 murium, 390 

 Susceptibility 



of arthropods to viruses, 402 



