Index 



593 



Ruskin, 482 



Rutherford, E., 570-576, 581 



Rutot, 130 



Sachs, J., Ill*, 210, 223 



St Hilaire, E. G. de, 8, 13, 16 



Salamandra atra, 269 



S. maculosa, 269 



Saltatory Evolution, 22-25 (see also Muta- 

 tions) 



Sanders, experiments on Vanessa by, 50 



Saporta, on the Evolution of Angiosperms, 

 313, 316 



Sargant, Ethel, on the Evolution of Angio- 

 sperms, 208 a 



Savigny, 531, 532 



Scardafella inca, 280, 281 



Scent, in relation to Sexual Selection, 296 



Scharff, R. F., 302* 



Schelling, 5, 6, 448, 449 



Schlegel, 515 



Schleicher, A., on language, 526-528 



Schleiden and Schwann, Cell-theory of, 

 137 



Schmarda, L. K., on geographical distri- 

 bution, 321 



Schoetensack, on Homo heidelbergensis, 

 129 1 



Schreiner, K. E., HO 2 



Schubler, on cereals, 243 



Schultze, O., experiments on Frogs, 262 



Schur, 560 



Schutt, 25, 26 



Schwalbe, G., on The Descent of Man, 

 112-136 



Sclater, P. L., on geographical distri- 

 bution, 321-324, 327 



Scott, D. H. , on The Palaeontological 

 Record {Plants), 200-222 



— 189 2 

 Scott, W. B., on The Palaeontological 



Record {Animals), 185-199 



Scrope, 357, 373 



Scyllaea, 279 



Sechehaye, C. A., 516 1 



Sedgwick, A., on The Influence of Darwin 

 on Animal Embryology, 171-184 



Sedgwick, A., Darwin's Geological Expedi- 

 tion with, 343, 344 



Seeck, O., 536 1 



Seed-plants, origin of, 209-213 



Segregation, 92, 93 



Selection, artificial, 19, 20, 32, 35, 67, 118, 

 469-471 



— germinal, 27, 28, 36-40, 49 



Selection, natural (-,.• Natural S. 



— oxganio, 41, 488, 499 



— sexual, 48-49, 118, 117, 277, 

 417 



— social and natural, 170 



— 18-88, 98, 186, L88 



S.'k-nka, 127 



Semuopithecus, 127 



Semon, B., 22, 142 



Semper, 368 



Senebier, 223 



Senecio vulgaris, 421 



Sergi, 131, 135 



Seward, A. C, 1, 71 3 , 312, 314, .'.17 



— and S. O. Ford, 212' 



— and J. Gowan, 20P 



Sex, recent investigations on, 88, '.'I 



Sharpe, D., 373 



Sherrington, C. S., 523 



Shirreff, P., 80, 82 



Shrewsbury, Darwin's recollections of, 340, 



341 

 Sibbern, 149 

 Si7iapis alba, 415 

 Smeririthus ocellata, 29 

 S. populi, 29 

 S. tiliae, 29 

 Smith, A., 448 

 Smith, W., 185 

 Snyder, 256 

 Sociology, Darwinism and, 486-476 



— History and, 535 

 Soddy, 573 



Sollas, W. J., 128, 129, 369 

 Sorley, W. R., 4(il 



Species, Darwin's early work on tr.u.- 

 mutation of, 350-353 



— geographical distribution and origin of, 

 322, 323 



— immutability of, 888 



— influence of environment en, 840-948 



— Lamarck on, 844 



— multiple origin of, 888, B94 



— the nature of a, 296, 997 



— polymorphic, 69, 70 



— production by physico-cln mirul DBM - 

 of, 270 



— and varirti, i, 89, 94, 96 



— de Vries's work on, 2 11. 212 

 Spencer, H., on evolution, 461 



— on Lyell's 1'nu 



— on the nature of the living r, 'H, 227 



— on primitive man. 601 



— on the theory of Seleetioii, B8 



— on Sociolo; 



