INDEX 



615 



Revival of science, the, 15-16 



Rhodeus amarus, 221 



Rignano, E., 461 



Ritzema-Bos, J., 511 



Robinson, L., 88-89 



Rodentia, loss of teeth in, 1 29 



Romanes, G. J., 35, 65, 66-100, i72-8i,_ 



272-73 

 Roosevelt, T., 226 

 Rosa, 494 



Rosanoff, A. J., 523 

 Roux, W., 277 

 Rubus, 494 

 Rumex, 494 

 Rumford, B. T., 286 

 Ruminants, collar-bone of, 129 

 Ruskin, J., 587-88, 592 

 Ruskin and race culture, 587-88 

 Rutherford, E., 284 



Sacculina, 120, 130, 202, 404 



Saleeby, C. W., 581-92 



Salatory, variations, 38 



Sandwich Islands, fauna of, 180-81 



Saunders, 352 



Scardafella inca, 332-33; S. dialeucos, 

 332-33; S. braziliensis, 332-33; -S 

 ridgwayi, 332-33 



Schatz, F., 536 



Schoetensack, Dr., 160 



Schuchert, C, 138-40 



Scott, W. B., s, 6, 108-12, 122-31, 133- 

 34, 144-47, 153 



Scrophularia, 335-36 



Seals, comparative anatomy of, 66-67 



Secondary sexual characters, 405 



Sedum spectabile, 328-30 



Segregation, Mendel's law of, 40-42, 

 341-44, 392 



Semon, R., 461 



Serology, evidences from, 60 



Sex determination, 396-404; chroino- 

 some mechanism of, in Drosophila, 

 398 ff.; in parthenogenetic species, 

 401-2; nutrition theory of, 418; rela- 

 tion of, to genetics, 395; at time of 

 fertilization, 396-97; various theories 

 of, 396 ff. 



Sex differentiation, 404-8 



Sex, heredity and, 44, 319-20 



Sex-linked inheritance, 408-15; rules for 



41S 

 Sexual coloration, 205 

 Sexual reproduction, 301-2 

 Sexual selection, 26, 249-51 

 Shelford, V. E., 196 



ShuU, A. F., 101-4, 144, 147-51, 171-72 

 ShuU, G. H., 43, 497 

 Sims, G. R., 587 



Smith, E. A., 465, 471-72, 503, S04 

 Smith, G., 404 

 Snow, E. C., 566 

 Solidago vigiiarea, 450 

 Somatogenic reproduction, 300 

 Species, definitions of, 105-6 

 Spencer, H., 4, 19, 28-29, 273, 451, 591 

 Spermatid, 312-13 

 Spermatocyte, 312-13 

 Spermatogenesis, 312-13 

 Spermatogonium, 312-13 

 Spermatozoon, 114, 312-13 

 Spiranthus, 494 

 Spontaneous generation, 12 

 Sports, 38 



Sprengel, C. K., 219 

 Standard deviation, 432-33 

 Staples-Brown, R., 356 

 Statistical study: of variation, 436-40; 



of heredity, 435-4© 

 Stegodon, 148-51 

 Steinach, E., 405 

 Steinmann, G., 6 

 Stejneger, loi 

 Sterilization laws, 576-77 

 Stock on graft, no influence of, 459-60 

 Stockard, C. R., 338, 461, 503 

 St. Helena, fauna of, 178-80 

 St. Hilaire, E. G., 21-22, 229 

 Strangeways, T. S. P., 109 

 Strongylocentrotus, 509 

 Sturtevant, A. H., 416, 421 

 Subsidizing the fit, 577-579 

 Survival of the fittest, 232-39 

 Swainson, 106 

 Synapsis, 312, 366 

 Systema Naturae, of Linnaeus, loi 



Tail, vestigial in man, 89-90 



