Index 



355 



freer than animals, 312 



mongrel race, 288 



place in nature, 3 



prehistoric, 271 



races of, 273 



slow breeding of, 115 



species of, 270, 271 



value of races of, 273 

 Maoris of New Zealand, 274, 284 

 Marriage, age of, 291, 296 



selection, 288, 289 

 Marsupials, 26 



Massart, reactions of Spirilla, 39 

 Materialism, 35 

 "Maternal impressions," 29 

 Maternal Inheritance, hi, 197 

 Matter and mind, 35 

 Maturation period, 154 



divisions, 154, 155 

 "Mayflower" descendants, 294 

 Maze, of heredity, 76, 120 



life, 311 

 Mechanism of Development, 198 

 Mechanism of Heredity, 131, 168 

 Mechanistic hypothesis, 319 

 Mediocrity, tendency to, 78 

 Meischer, On stereoisomeres of al- 

 bumin, 171 

 Memory, 43 



associative, 45 



organic, 45 

 Mendel, abbot of Briinn, 81 



dominant and recessive charac- 

 ters, 83 



dominant recessive ratios, 83 



experiments on peas, 64, 82, 84 



inheritance formulae, 94 



inheritance units, 100 



method of work, 63, 82 



neglect of discoveries, 82 



purity of germ cells, 87 



study of characters, 64 

 Mendelian Association and Disso- 

 ciation, 260 

 Mendelian factors and chromosomes, 



130, 176, 178, 179 

 Mendelian Inheritance, diagrams 

 of, 84, 85, 89 



in Man, 113-119 



Table of. 116-118 

 Mendelian principles, 97 



Dominance, 98 



Modifications and extensions, 



98 



Segregation, 98 



Unit characters, 97 

 Mendelian ratios, simple, 83, 87 



other ratios, 89, 90 



unusual ratios, 107 



monohybrid, 83, 90, 9/ 



dihybrid, 91, 92 



trihybrid, 91, 93, 95 



dominant-recessive, 85 



departures from, 107 

 Mendelism, 81, 120 

 Mendelssohn, reactions of Parame- 

 cium, 40 

 Meniere's disease, 118 

 Mentality, influence of education, 206 

 Mesoderm, 23 

 Metabolism, 8 

 Metchinikoff, disharmonies in man, 



242 

 Metempsychosis, 33 

 Microscopic particles, smallest visi- 

 ble, 129 

 Middleton, Effects of Selection on 



Stylonychia, 257 

 Mind and body, 35 

 Mind, development of, 32-56 

 Mind, Germinal Basis of, 36 

 Mirabilis, white-red cross, 86, 97, 105 

 Mitosis, 16, jS, 19, 20, 136, 137 



significance of, 131, 144, 148 

 "Mneme" theory, 235 

 Modifiability of behavior, 50 

 Molecular constitution, stereoiso- 

 meres, 171 

 Molecules, largest known, 129 

 Monasticism, 278, 290 

 Monohybrid, 83, 90, 91 

 Monotremes, 26 

 Monstrous development, 209, 306 



cause of, 209 

 Montgomery, on Chromosomes of 



man, 161 

 Moral qualities inherited, 71 

 Morgan, gynandromorphs, 167 



chromosomes of Drosophila, 186 



map of chromosomes, 189 



"cross-Overs," 187 



mutations of Drosophila, 181, 263 



sex chromosome, 162, 166, 167, 

 182 



