464 Subject Index 



Sanguiiiarine, 113 

 Sarcoma, 26, 180 



benzopvrene-induced, 261 



Crocker, 253, 255, 256 



grafted, 26 



in rat, 260 



Rous, in fowl, 262 



treated, 26 



imtreated, 26 

 Sassfifias albidum. 413 

 Saturated ketone, 163 

 Saxifrages. 1 1 



Scales of liliaceous plants, 381 

 Schistosonius reflexus, 206 

 Schwann cells, mitoses of, 246 

 Schweigger-Seidel tubules; see Kidney 

 Sea urchin eggs, 392 

 Seed 



aniphiploid weight and size of, 365, 

 367 



of autotetraploid, 326 



colchicine from, 144-47, 151, 152, 153, 

 154, 159 



colchicine compounds from, 144-49. 

 153, 154 



Cnlchiciim described, 153 



collecting Colchicum, 150-51 



criteria for judging polyploid from, 

 320, 363-67 



dehiscence of, 149 



effect of pollination on, 367 



four X. 32S-29 



fruit without, 302, 307, 329 



grain weight, 365 



markings V)n, 330, 365 



mature', 149, .329 



in Medicagn. 322 



ninnber of, per fruit, 365 



ovules appearing as, 321-31 



production of, 3x. 332 



prc)]3agation of triploid, 328 



reduced setting. 371 



seed production in rice. 321 



seed-producing parts, 5 



size of, 365 



size correlated with drug production, 

 152 



spring production in CoUliic utii , 3, 7 



sugar beet, 332 



tctraploid, 328, 330, 363-65 



tliitkness of, 328, 365 



three X, 328-29, 332-33 



treatment with colchicine, 384 



variation in colchicine from. 150-52 



\olume of tctraploid, 365 



watermelon tctraploid, 327-29, 365 



yield lower from tctraploid, 284 

 Seedless fruits, 327 



o\iiles appear as seeds, 327-31 



term meaningless, 327 

 Seedling cidture in watermelon. 329 



Seedling treatment; see Techniques of 



colchicine treatment 

 Segmental allopolyploid. 277, 281, 282 

 Self incompatibility, 332 

 Seminal vesicles, 217, 219, 226, 227, 2,32. 



234 

 Septa. 89 



arrested cell plates, 89-90 

 Serratia marcescens, 261 

 Serum 



homologous, 378 



hiunan, 397 

 Sescjuihydrate crystals, 159 



complex crystals, 373 



concentrated colchicine solution 

 deposits, 159 

 Sex determination in plants, 351 



excess of females in hemp, 353 



influence of X chromosome, 352-54 



methods of determining, 353 



and polyploidy, 351-52 



role of autosomes, 353 

 Sex hormones, 230; see also Androgens, 



Hormones, Progesterone 

 Sexual cycle in animals, 376 

 Shin-Yamato, variety of watermelon, 330 



diploid. 3.30 



fruits, 330 



seeds, 330 



tctraploid, 330 



triploid, 330 

 Shoot growth index, 96 



effect of colchicine, 96 



leaf shoots, 96 

 Shope papilloma, 262, 263 

 Siletie otites, 353 



female homogametic, 354 



male hcterogametic, 353-54 

 Silk worm. 191 

 Siredou, 32, 41, 42, 96, 97 



duration of c-mitosis in, 48 



erythroblastic prophase metaphase. 90 



recovery stages in, 45, 56, 97 



spleen of, 29, 50 

 Silanion, 302 



artificial polvploid of, 301-3 

 Skin, growth of, 221, 226, 227, 376 



for l)io|)sics, 37(>, 383 

 Slec|3, action on mitosis, 221 

 Small intestine of mammal, 378 

 Snapdragon, 326; see also Antiyyhiuuiii 



aftereffects of colchicine, 1 15 



pollen germination in, IKi 

 Sod i tun, 180 



Sodium cacodylatc. 17. 29. 397. 411 

 Sodium diethyldithiocarbamate, 412 

 Sodiiun methoxidc in methanol, 167 

 Solatium. 288, 311, 3-'5 



crosses with S. tuberosum . 325 



hybrids of, 311 



interspecific h\l)ridi/ation. 325 



