SUBJECT INDEX 



Abraxas grossulariata, 22, 198, 247 

 Abraxas grossulariata lacticolor, 250 

 Acanthocephala, 212 

 Acetabidaria, 182, 192, 200 

 Activators, 182 

 Allot riploid hybrids, 149 

 Allium fistulosum, 280 

 Amphibia, merogony, 44 



ovocytes, 264 



species hybrids, 180 

 Anemone, 200 

 Anthocyanin, 169-170 

 Antimorphs, 135 

 Antirrhinum, A. majus, 98 



geographic species, 273 



radium-induced abnormalities, 25 

 Aquilegia vulgaris, 38, 279 

 Argynnis, paphia, 130 



paphia-valesina, 250 

 Arrhenius's formula, 44 

 Artemia salina, 153 

 Ascaris, chromatin diminution, 280 

 Auxin, 62 

 Axolotl, development, 23 



B 



Bacteriophage, 60, 61, 74 

 Balance of the genes, 133, 148 

 Bantam cocks, hen-feathered, 188 

 Barley, chemistry of chlorophyll- 

 defective mutants, 93 

 Baroid translocation, 305 

 Basidiomycetes, 268 

 Birds, development of abnormalities, 

 24-26 

 feather pigmentation, 34-36 

 See also Feather 

 Blood-groups, 99 



Bombyx (see silkworm) 

 Brachyphalangy, 41 



Bruchus, 226 



Butterflies, experiments on, 45, 47 

 morphology of pattern, 246 

 pattern and form of scales, 234 

 seasonal polymorphism, 249 

 wing pattern, 4 



Callimorpha dominula, 250 



Canna, 273 



Capsicum, 218 



Carassius auratus, 260 



Caterpillar with pupal antennae, 173 



Cats, with one blue and one yellow 



eye, 226 

 Cattle monstrosities, 49 

 Cell-constant animals, 212 

 Chain molecules, 293, 301-302 

 Chemodifferentiation, 182, 265 

 Cheiranthus cheiri, 98 

 Chimerae, 177, 261, 267 

 Chromatin rearrangements, 312 

 Chromosomes, as large chain mole- 

 cules, 300, 310 



loss of whole, 147 



natural races, 152 



sticky, 280 

 Chrysomelid beetles, 251 

 Cirsium, 278 



Coccinellids, color pattern of, 247 

 Colias edusa, 130, 250 

 Coloboma, 40 



Conditioned dominance, 107 

 Cotton, dominigenes, 108 

 Crack patterns, 261 

 Crataegomespilus, 177 

 Crataegus, 178 

 Crepis, 149 



369 



