INDEX 



283 



Negroes, crosses of, 233 

 features of, 214 

 hair and skin of, 52, 54, 59, 6^ 

 lefthandedness in, 72 

 mentality of, 152, 234, 247, 



248 

 pituitary in, 212 

 Polydactyly in, 93, loi 

 Negro, troops in American army, 

 225 

 twins, 180 

 Nelson, 164 

 Neolithic races, 223 

 Nervous derangements, inherit- 

 ance of, 166, 167 

 system, differences inherited, 

 210, 220 

 of negroes, 235 

 Nettleship, E., 57, 61, no, 114, 



116 

 Neuralgia, 235 

 Neurasthenia, 218, 220, 235 

 Neurofibromatosis, 141 

 Neurotic stocks, 156 

 Newman, H. H., 115, 119,176, 



177, 178, 181, 199 

 New York, foreign born in, 236 



sex-ratios in, 230 

 Nichols, 202 

 Nietzsche, 220 

 Night-blindness, 68, 75, 114, 115, 



116, 189 

 Nilsson, M. P., 238 

 Nineveh, sculptures of, ^y 

 Nomadism, 162, 163 

 Nordic race, 141, 212, 231 

 Norfolk Islanders, 228 

 North Carolina, 43, 115 

 Norway, 90, 134, 141, 104 

 albinoes in, 65 

 deaf-mutes in, 106 

 eye colour in, 45, 48 

 Polydactyly in, 96 

 racial crossing in, 231 

 Nose-bleed, hereditary, 109 

 Notch in ear of cattle, 135, 203 

 Nougaret, Jean, 115 

 Nucleus, in mitosis, 13 

 Nyassaland, 59, 71 

 Nyctalopia, 117 

 Nystagmus, 1 16 



O 



Oats, bush varieties of, 35 

 Occipital meningocele, 193 

 Ocular defects in twins, 190 

 CEdema, angioneurotic, 127 



persistent hereditary, 126, 

 127 



GLnothera gi^as, 21 



Lamarckiana, 21 



bud colours in, 58 



chromosome numbers in, 21 



flower-size in, t^t^ 



self-pollination in, 206 

 Ohio, 158, 197, 198 

 Openings in parietal bones, 133 

 Ophthalmia in twins, 188 

 Optic nerve, atrophy of, 116 

 Optimum density of population, 



242, 243 

 Orang and thyroid, 2 1 7 

 Ordahl, G., 157 

 Organic social condition, 249 

 Organism, relation to environ- 

 ment, 6 



development of, 14 

 Osborn, Dorothy, 25 

 Osteopsathyrosis, 75 

 Ostrich hybrids, 26 

 Otis, Arthur S., 157 

 Otosclerosis, 107 

 Ottawa, 39 



Over-population, 243, 244 

 Oxford class lists, 146 



Pain and bodily changes, 2 1 7 

 Painter, T. S., 21 

 Palaeolithic man, 151, 



mental states of, 225, 

 226, 247, 248 

 races, 223, 225 

 Palm and sole patterns, 176 

 Palsy in guinea-pigs, 167 

 Pancreas, 2 1 1 

 Parathyroid glands, 2 1 i 

 Pariah dogs, 41 



Parietal bones, conformation of 

 left, 193 

 openings in, 133 

 Parthenogenctic larvae, 178 

 Parthenon, 38 

 Patagonia, 38 



population in, 242 

 Patella, absence of, 1 36 

 Patiria, 178 



Patterson, J.T., 176, 177, 181, 199 

 Pearl, Raymond, 92, 198, 208, 



229, 230, 237. 245 

 Pearson, Karl, 34, 35, 44, 52, 57, 



58, 59, 60, 61, 64, 65, 66, 68. 77, 



78, 139, 145, 146, 151, 153, 157. 



171, 208, 209 

 Peas, bush varieties of, 35 

 Peculiarities of blood system, 137 

 Pekinese dogs, 69 



