INDEX 



285 



Rats, cancer in, 140 



inheritance of wildness in, 

 165, 166 

 of waltzing in, 167 



on Sable Island, i"] 

 Ray pattern eye colour, 49 

 Reaumur, 93, 103 

 Reduction divisions, 14, 15, 20, 24 

 Reed, L. J., 245 

 Reheboth hybrid people, 229 

 Reproductive overwork, 109 

 Reptiles, hermaphrodites in, 133 

 Resemblances, inheritance of, 24 



in identical twins, 200 

 Retinitis pigmentosa, 116 

 Reversed symmetry, 72, 179 

 Rice hybrids, i 5 

 Rickets, 42 

 Riddle, O.. 109, 167 

 Ridge patterns of finger tips, 176, 

 180, 183 

 of palms and soles, 176, 

 179 

 Rieder, H., 91 

 Rischbieth, H., 34, 130 

 Ritzman, E. G., 134 

 Roberts, Elmer, 97, 98 

 Robins, albino, 68 

 Rodentia, multiple births in, 200 

 Roman rule, 238, 239 

 Rome, downfall of, 238, 245 

 Rontgen rays, 141 

 Rudimentary ear lobules, 1 34 

 Riidin, Ernst, i 58 

 Russians, immigrants, 232 



in crosses, 230 



Sable Island, 36, 38 



wild horses on, 37 

 Salaman, R. N., 141, 142 

 Salamanders, 41, 42 

 Saltations, 126 

 Samar Island twins, 180 

 San Francisco, 39 

 Sano, F., 186 

 Santa Cruz Island, 39 

 Sarcoma, 140 



Savageness, inheritance of, 167 

 Scandinavians, eye colour in, 64, 

 207 

 migrations of, 239 

 Schaefer, 218 

 Schmidt, Johs, 94 

 Schofield, R., 61, 94, 100, 135 

 Schroeder, 105 

 Schultz, A. H., 100 

 Schurmeier, 100 



Schuster, E., 146 

 Schwcizcr, Marie, 103 

 Scotch in crosses, 230 

 stature of, 30, 43 

 Scotland, albinism in, 66 

 deaf-mutism in, 107 

 Scott, J., 112 

 Scurvy, 42 



Scutes in armadillo, 181 

 Seals, hermaphroditism in, 133 

 Sebaceous scalp tumours, 123, 124 

 Sedgwick, William, 25, 49, 53, 66, 

 67, 76, 105, 117, 119, 120, 121, 

 122, 123, 124, 133, 134, 136, T55 

 Sedigiti, loi 



Seedlings, right-handed, 74 

 Segmentary social condition, 248 

 Segregation of characters, 8, 13, 



15, 213, 222, 229 

 Selection, 221, 223 



against feeblemindedness, 159 

 Self-fertilisation, 208, 209 

 Self-pollination in CEnothera, 206 

 Self-sterility in plants, 224 

 Seligman, C. G., 102, 216 

 Sella turcica, 41 

 Serums, 26, 129, 144 

 Sessions, Mina A., 158 

 Sex chromosomes, 19, 132 

 in insects, 22 

 in man, 20, 22, 210 

 Sex-determination, 19, 22, 201 

 Sex-linked inheritance, 19, 20, 47, 

 61, no, 112, 114, 115, 116, 117, 

 118, 120, 122, 123. 124, 154, 

 163 

 Sex of twins, 195 

 Sex-ratio, in crosses, 229, 230 

 after war, 239 

 of twins, 202 

 Sexual selection, -jj , 207 

 Shattock, S. G., 132 

 Sheep, Ancon, 40 

 earless, 134 

 horns in, 61 

 intoxicated by pampas grass, 



167 

 on Sable Island, 'S^ 

 thyroid, 214 

 twins, 194, 202 

 Shelley's face, 219 

 Shell-shock, 218 

 Shetland ponies, 35 

 Shifting of peoples, 223, 226, 239 

 Siaynanga syndaciyla, 100 

 Siamese, 2 1 q 

 Siemens, H."W., 158 

 Simpson, Q. I., 63 

 Sinclair, James, 70 



