INDEX 



703 



Schron, 118 



Schulin, 156 aq. 



Sehultz, 320 



SchultZB, 393, 642, 647, 650 



Schutz, 532 



Schweigger-Seidel, 173 



Sciurus vulgaris, 41 



Sclatsr, 65 



Sdercyphytum, 9 



Scorpion, 350 



ScylUum, 277 



Seal, gestation of, 32 ; breeding 

 season of, 59 aq. 



Sea-urchin, 199, 225, 301. See also 

 ■under generic names 



Sedgwiek, 6, 73, 186 



Seeliger, 199 



Seitz, 149, 156, 158 



Selenka, 382, 392, 420, 465 



Sellgmann, 305, 306. See also 

 Shattock and Seligmann 



Semen, chemistry of, 282 sqq. 



Seminal fluid, 176 



Semnopithecus enteUiis, 63, 89 sqq., 97 



Semnopitliecus nasiciis, 464 



Semon, 18, 38, 39 



Semper, 10, 12, 14, 15, 22, 31 



Senescence, 675 sqq. 



Seps, 151 



Seps chalcides, 380 



Serralach and Paris, 238 



Serres, 528 



Sertoli, 253 



Seubert, 232 



Sex, determination of, chap. xv. 



Sfamenl, 68 



Shad, 18 



Sharpey, 400, 466 



Shattock and Seligmann, 311, 315 



Sheep, 26 ; dioestrous cycle in, 37 ; 

 oestrous cycle in, 42 sqq., 107 sqq. ; 

 ovulation in, 136 ; corpus luteum 

 in, 147 sq., 152 ; 183 ; Mendehan 

 experiments on, 198 ; in-breeding 

 in, 209 ; accessory reproductive 

 organs in, 229, 247 sq. ; castra- 

 tion in, 306 ; foetal nutrition in, 

 371, 376, 380, 386, 396 sq., 400, 

 403 aq., 407, 417, 427, 435, 484, 

 487 ; pregnancy in, 495, 508, 

 £20 ; parturition in, 535 ; lacta- 

 tion in, 554 aq. ; fertility in, 590 

 sq., 596 sqq., 604 ; abortion in, 

 612 sq., 617 sqq. ; growth of, 668 ; 

 age attained by, 681 

 Sherrington, 255, 259, 330 

 Shortt, 44, 47 



Shrew, breeding season of, 60 ; 

 foetal nutrition in, 372, 377, 

 391 sq., 452-5 



Siebold, von, 186, 628 sq. 



Siglsmiind, 162 



Silkworm moth, 184, 217, 280 sq., 



307, 626 

 Simocephalus, 632, 644 

 Simpson, Sir James, 537, 541 



J. Y., 213 



Simpson (Sutherland) and Marshall, 



262 

 Sims, 609 



Sin6ty, 510. Sn also De Sin^ty 

 Siphostoma Jloridce, 652 

 Sipuuculids, 224 

 Sirenia, 376 sq., 553 

 Sixta, 38 n. 

 Skin, changes in, during pregnancy, 



523 

 Slemons, 499, 505, 517 

 Slocum, 524 

 Sloth, 402, 553 

 Slowtzoff, 283 



Smith, F., 314, 536, 667, 669, 

 678 



Geoffrey, 308, 640, 663. 658 



Tyler, 542 



Smyth, 126 



Snail, 186 



Snakes, scent-glands of, 31 



Snipe, 27 



Sobotta, 42, 132, 143 sqq., 150, 156, 



233, 439 

 Sokolofl, 317 

 Soli, 349 

 Somerset, 58 



Sow, oestrous cycle in, 50, 334 ; 

 ovulation in, 135 ; 145 ; in-breed- 

 ing in, 208 ; foetal nutrition in, 

 386, 394 sqq., 403, 484; partu- 

 rition in, 537 ; fertility of, 586, 

 591, 600, 605, 671 

 Spallanzani, 4, 19 aq., 22, 23, 56, 



140, 165, 181 aqq.. 203 

 Sparrow, 24, 26, 157 

 Specht, 607 

 Spee, von, 363, 393, 443 sqq., 449, 



466 

 Spencer, Herbert, 587 sqq. 

 Spermatogenesis, chap. v. 

 Spermatozoa, structure of, 172 sqq. ; 

 movements of, 176 sqq. ; chemo- 

 tactic properties of, 214 sqq. ; 

 chemistry of, 288 sqq. 

 Spermophihta, 160 

 Sphoerechinua, 179, 300 

 Sphcerechinus granulosus, 293, 300 

 Spider crab, 307 

 Spiegelberg, 542 sq. 

 Spiegelberg and Gscheidlen, 520 sq. 

 Spina, 254 

 Spinax, 151 



