INDEX 



453 



MacFarland, E. M., 226 



Maggot, 136 



Malpighi, 8 



Malthus, 10, 14, 250, 385 



Mammae, of primates, 188; super- 

 numerary, in man, 87 



Mammalia, 37 



Mammals, ancestors of, 157; adapta- 

 tions of, 159; adaptive radiation in, 

 253; classification of, 159; dis- 

 persal of, 160; evolution of, 157 

 secondary sexual characters of, 334 



Man, 26; systematic position, 187 

 structural plan, 187; arboreal or- 

 igin, 191; structural adaptations 

 196; skeleton, 192; evolution of 

 187; fossil remains, 198, 202; sig- 

 nificance of geological record, 201 

 climatic factors in evolution, 201 

 phylogeny, 304; ancestral species 

 restored, 200; course of evolution 

 208; loss of hair, 197; heredity in 

 359; heritable characters, 360; unit 

 characters, 361; chromosomes, 361 

 symphalangism, 363; Polydactyly 

 266, 363; sex-linkage, 364; in- 

 heritance of color blindness, 365 

 inheritance of defects, 366; pedi- 

 grees, 366; inheritance of deaf- 

 mutism, 367; inbreeding, 367; and 

 environment, 372; desirable traits, 

 374; importance of mental develop- 

 ment, 375; Heidelberg, 202; Nean- 

 derthal, 200, 204, 205; Piltdown, 

 203; Cro-Magnon, 200, 206 



Mandibles, of Anopheles, 234 



Mangro, 363 



Mantis, raptorial foreleg of, 218 



Maple seeds, 260 



Marsh, 164 



Marsupials, 159 



Mass selection, 351 



Mastodon, 170, 171; skull and tooth, 



174 

 Matthew, 179, 197 

 Maturation divisions, 294 

 Maxillae, of Anopheles, 234 

 Maxillary palpi of Anopheles, 234 

 May-fly, 138 

 McClung, 308, 333 

 Meckel's cartilage, 54, 73, 110; of 



embryo kitten, 60 

 Mendel", 16, 17, 276 



Mendelian hybrids, of plants, 342 



Mendelian inheritance, 276; and chro- 

 mosomal behaviour, 303; funda- 

 mental principles, 279; monohy- 

 brid ratio, 277; dihybrid ratio, 

 281; practical importance, 287 



Mental defects, and eugenics, 376; 

 inheritance of, 370 



Mental traits, 370 



Mertjchippus, 181, 183; teeth, 181 



Mesemhryanthemum, 226 



Mesohippus, 179, 183; teeth, 180; 

 feet, 180 



Mesonephric tubule, 65 



Mesonephros, 66 



Mesozoic, 122; reptiles of, 153 



Metabolism, 30, 90, 114; of animals, 

 92; of plants, 91; other types, 93 



Metameres, 35 



Metamorphosis, 24; of insects, 136 



Metanephros, 66 



Metatheria, 102, 159 



Method, of evolution, 16 



Methods, of selection, 351 



Mice, field, 230 



Mice, Weismann's, 419 



Migration, 251, 254, 392 



Milk, 102 



Milkweed seeds, 260 



Mimicry, 241, 245; and classification, 

 26 



Mind, brachiation and, 193; environ- 

 ment and, 194 



Miocene, 122; apes, 198; camels, 185; 

 climate, 180; elephants, 169; horses, 

 180 



Miohippus, 179, 183 



Mirabilis jalapa, 281 



Mississippian, 123 



Mitochondria, functions in heredity, 

 303 



Mitosis, 100 



Mocking birds, 409 



Modifications, 268 



Moeritherium, 168;sk\i\\ and tooth, ^74 



Molds, 125, 126 



Mole, 253 



Mole cricket, 221; burrowing fore- 

 leg of, 218 



Mole, European, 221; adaptations, 

 221 



Mollusca, 28, 37, 132; in nekton, 215; 

 in plankton, 215 



