INDEX 



1509 



life {continued) — 



theory in outline, 1401 



the trajectory of, 1260 



without oxygen, 320 

 limit of growth, 456 

 linkage-groups for genes, 980 

 linked instincts, 616 

 lipochromes, 415 

 littoral fish, 86 

 littoral life. 85 



living organisms, study of, 1473 

 logic of life graphs, 1413 

 longevity, 803 



long-persistent ancient types, 896 

 luminescence — 



in fresh water, 424 



occurrence, 422 



organic, 421 



uses of, 428 

 luminous bacteria, 427 

 luminous organs, 425 

 lunar periodicity in spawning, 475 



Macrosomes, 375 



Magdaleniens, 1175 



malaria, 122 1, 1283 



male cell, 720 



male characters, secondary, 466 



male organs, 465 



removal of, 465 

 maleness as Mendelian character, 



531 



Malpighi, 282 

 Malthus, 463 

 mammals — 



marsupial, 794 



oviparous, 794 



of the Steppes, 100 

 man — 



as adaptive mechanism, 655 



of Taungs, 1155 



pedigree of, 11 49 

 man's animal enemies, 1279 

 man's emergence, 1156 



factors in, 1158 

 man's evolution, factors in, 11 56 

 Manoilov test for sex, 502 

 marriage of cousins, 475 

 married life, 1266 

 marine animals, 1292 

 marsupial mammals, 794 

 masculine characters in females, 466 

 mate — choice of, 1025 

 mathematician, function of, 1124 

 mating, preferential, 1024, 1026 

 maturation of germ cells, 980 



Mayflies' wedding dance, 109 1 

 mechanism — 



and organism, 647 



and vitalism, 650 

 mechanistic culture, 1239 

 medical women — education for, 577 

 medicine and biology, 1217, 1231, 1237 

 meiotic division, 726 

 melanism in moths, 1003 

 melanins, 413 

 Mendelian characters in sociology, 



1245 

 Mendelian inheritance, 1094, 1222 

 Mendelian theory of sex, 531 

 mental activity, 29 

 mesoderm, 736, 737 

 Mesozoic period, 840 

 metabolic gradients, 458 

 metabolic rate, 504 

 metabolism, 12 



basal, 359 



and warm-bloodedness, 1063 

 metagenesis — theory of, 784 

 micro-dissection — technique of, 371 

 microsomes, 375 

 microtechnical methods, 373 

 migration, 69, 109 



characters of, 78 



of fish, 80 



of mammals, 78 



of reptiles, 79 



origins of, 74 



premature, 617 



routes, 71 



stimulus to, 76 

 migratory birds, 52, 552 

 migratory impulse of eels, 73, 81 

 mind — 



and body, 653 



as social product, 571 



in animals, 639 

 mind-body, 1243, 1409 

 mind-stuff, 1380 

 minor faunas, 89 

 misadaptation, 1092 

 mistletoe, 178 

 modes of reproduction, 451 

 modification — somatic, 1012, 1014, 



1096 

 modifications, 996, 1009 

 monogamous animals, 558 

 monogamy — solitary, 560 

 monohybridism, iioi 

 monsters, mystery of, 1224 

 monstrosities, 193, 336, 746, 962 

 morphological analysis, levels of, 667 



