650 



INDEX 



Antirrhinum, majus X mollc, 220 



IriMJUS, 90, 133 



species hybrids, 227, 235 

 Antitoxins in plants, 408 

 Aphis maidiradicis, maidis, 410 



-resistance in stone fruits, 400 



in teosinte, 410 

 Apple, Baldwin, 393 



Ben Davis, 394 



breeding, 295, 297 



bud selection, 393 

 sports in, 393 



chimeras, 381 



collections, 299 



hybridization, 311 



uniformity, 393 



yield, 393 

 Aquilegia hybridized, 438 



multiple allelomorphs in, 160 

 Arctia caja, 492 



Arenander, mutation in cattle, 464 

 Arnold, apple breeding, 295 

 Art of breeding, 447 

 Artificial insemination, 552 

 Asparagus, 318 



alkali resistance, 401 



heterosis in, 364 

 Ass, chromosome number in, 519 



hybrids, 516 



Autogamous organisms, 16 

 Autogenetic variations, 20 

 Autosomes, 58, 65 

 Ayrshire breed, 454 



Babcock and Lloyd, somatic segregation, 275 

 Back-cross, 73 



Bacteria contain chromatin, 264 

 Bags for hybridization, 344 

 Bailey, L. H., bud mutation, 366 

 selection, 298 



seed and plant introduction, 299 



"Survival of the Unlike," 288 

 Bailey and Wyman, sweet pea, 305 

 Bakewell, animal breeder, 500, 581 

 Banana, dimorphic branches, 275 

 Barber, genetic theory, 27 

 Bar eye in Drosophila, 149, 202 

 Barley, 317 



autogamous, 257 



little natural crossing, 318 



mutations in, 369 



pure lines, 293, 340 



winter-resistant, 340 

 Barrenness in Duchess cows, 556 

 Bartlett, (Enothera investigations, 283 

 Bateson, comb types in fowls, 164 



complementary factors, 140 



contabescence, 234 



earwig, 48 



fowl, sex-linkage, 209 



genetics, meaning of, 1 



linkage in peas, 125 



Batcson, multiple recessive factors, 140 



presence and absence hypothesis, 153 



polled cattle,'463 



eomatic segregation, 274 



sweet pea, 306, 308 

 Bateson and Punnett, Sheep, 549 

 Baur, Antirrhinum, 147, 220, 223, 227, 235 



chimeras, 378, 379, 380 



factors, manifold effects of, 133 



linkage in snap dragon, 125 



natural chimera, 378 



Primula experiments, 26 



Solanum Darwinianum, 377 



snap dragon trihybrid, 90 



stock and scion, 383, 384 



variation classified, 15, 263 



variegation, 381 

 Beach and Maney, aphis-resistant plums, 297 



hybrid fruits, 409 



Beal, sweet peas, 304, 306, 307, 310 

 Bean, 317 



Bush Lima, origin, 177 



Florida Velvet, valuable mutations in, 

 367 



multiple allelomorphs in, 160 



mutations in, 367 



Princess, 250, 318 

 Beans, crossing in, 318 



effect of grafting, 384 



pure lines in, 340 



tall and dwarf, 174, 175 

 Becker, Boston fern, 312 

 Bees, bumble, cross beans, 318 

 Beets, alkali resistance, 401 



remnant system, 335 

 Behavior of graft-hybrids, 382 

 Beliefs of practical breeders, 564 

 Bell, marking individuals, 602 

 Benedict, Boston fern, 312 



bud mutations, 315 

 Berckman's peach, 297 

 Bermuda grass, clonal selection of, 298 

 Berries, hybrid, 297 

 Berthollet, species hybrids, 230 

 Bibos frontalis X Bos taurus, 236 



gaurus X Bos taurus, 236 



grunniens X Bos taurus, 236 



sondaicus X Bos indicus, 236 

 Biffin, Puccinia glumarum, 411, 412 



wheat, rust-resistant, 294, 295 

 Biologic strains of fungi, 415 

 Biology and acquired characters, 480 



subdivisions of, 4 

 Biometrical school, 32, 439 



study, requirements 01, 36 



terms, 37 

 Biometry, 5, 6, 32 

 Biotypes in maize, 326 



in mixed populations, 260 

 Birds, hybrid, 521, 543 



sex-determination in, 539 



sex-linked inheritance, 209 



song in male, etc., 214 



sterility in hybrid, 558 



