Index 



693 



Buskin, 482 



Eatheriord, E., 570-576, 581 



Butot, 130 



Sachs, J., Ill*, 210, 223 



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



Salamaiidra atra, 269 



jS. maculosa, 269 



Saltatory Evolution, 22-25 (see also Muta- 

 tions) 



Sanders, experiments on Vanessa by, 50 



Saporta, on the Evolution of Angiosperms, 

 313, 816 



Sargant, Ethel, on the Evolution of Angio- 

 sperms, SOS^ 



Savigny, 531, 532 



Scardafella inca, 280, 281 



Scent, in relation to Sexual Selection, 296 



Scharff, B. F., 302* 



Schelling, 5, 6, 448, 449 



Schlegel, 515 



Schleicher, A., on language, 526-528 



Schleiden and Schwann, Cell-theory of, 

 137 



Schmarda, L. E., on geographical distri- 

 bution, 321 



Schoetensack, on Homo heidelbergensis, 

 1291 



Schreiner, K. E., IIO'^ 



Schiibler, on cereals, 243 



Schultze, 0., experiments on Frogs, 262 



Schur, 560 



Schiitt, 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 Palaeontologioal 

 Record (Plants), 200-222 



— 189- 



ScoTT, W, B., on The Palaeontological 

 Record {Animals), 185-199 



Scrope, 357, 373 



Scjllaoa, 279 



Sechehaye, C. A., 516^ 



Sedgwick, A., on The InJlueHce of Darwin 

 on Animal Embryology, 171-181 



Sedgwick, A., Darwin's Geological Expedi- 

 tion with, 343, 344 



Seeck, 0., 536' 



Seed-plants, origin of, 209-213 



Segregation, 92, 03 



Selection, artificial, 19, 20, 32, 35, 67, 113, 

 469-471 



— germinal. 27, 28. 36-40, 49 



Selection, natural (see Natural Selection) 



— organic, 41, 428, 429 



— ^exual, 43-49, 116, 117, 277, 292-297, 

 417 



— social and natural, 470 



— 18-65, 96, 125, 126 

 Selenka, 127 

 Semnopithecus, 127 

 Semon, E., 22, 142 

 Semper, 368 

 Senebier, 223 

 Senecio vulgaris, 421 

 Sergi, 131, 135 



Seward, A. C, 1, 71', 312, 314, 317 



— and S. 0, Ford, 212i 



— and J. Gowan, 201- 



Sex, recent investigations on, 93, 94 



Sharpe, D., 373 



Sherrington, C. S,, 523 



Shirrefif, P., 80, 82 



Shrewsbury, Darwin's recollections of, 340, 



341 

 Sibbern, 449 

 Sinapis alba, 415 

 Smerinthus ocellata, 29 

 S. populi, 29 

 S. tiliae, 29 

 Smith, A., 448 

 Smith, W„ 185 

 Snyder, 256 

 Sociology, Darwinism and, 465-476 



— History and, 535 

 Soddy, 573 



Sollas, W. J., 12s, 129, 369 

 Sorley, W. B., 461 



Species, Darwin's early work on trans- 

 mutation of, 350-353 



— geographical distribution and origin of, 

 322, 323 



— immutability of, 323 



— influence of environment on, 240-240 



— Lamarck on, 244 



— multiple origin of, 323, 324 



— the nature of a, 226, 227 



— polymorphic, 69, 70 



— production by physico-chemical means 

 of, 270 



— aud varieties, 69, 94, 95 



— de Vries's work on, 241, 212 

 Spencer, H., on evolution, 451-456 



— on Lyell's Principles, 338 



— on the nature of the living cell, 227 



— on primitive man, 501 



— on the theory of Selection, 32 



— on Sociology, 468 



