INDEX 



703 



Schron, 118 



Schulin, 156 sq. 



Schultz, 320 



Sehultza, 393, 642, 647, 650 



Schutz, 532 



Schweigger-Seidel, 173 



Sciurus vulgaris, 41 



Sclater, 65 



Sclerophytum, 9 



Scorpion, 350 



Scyllium, 277 



Seal, gestation of, 32 ; breeding 

 season of, 59 sq. 



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

 under generic names 



Sedgwick, 6 r 73, 186 



Seeliger, 199 



Seitz, 149, 156, 158 



Selenka, 382, 392, 420, 465 



Seligmann, 305, 306. See also 

 Shattock and Seligmann 



Semen, chemistry of, 282 sqq. 



Seminal fluid, 176 



Semnopithecus entellus, 63, 89 sqq., 97 



Semnopithecus nasicus, 464 



Semon, 18, 38, 39 



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



Senescence, 675 sqq. 



Seps, 151 



Seps chalcides, 380 



Serralaeh and Pares, 238 



Serres, 528 



Sertoli, 253 



Seubert, 232 



Sex, determination of, chap. xv. 



Sfameni, 68 



Shad, 18 



Sharpey, 400, 466 



Shattock and Seligmann, 311, 315 



Sheep, 26 ; dicestrous cycle in, 37 ; 

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

 ovulation in, 136 ; corpus luteum 

 in, 147 sq., 152 ; 183 ; Mendelian 

 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 sq., 407, 417, 427, 435, 484, 

 487 ; pregnancy in, 495, 508, 

 520 ; parturition in, 535 ; lacta- 

 tion in, 554 sq. ; fertility in, 590 

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

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

 age attained bv, 681 



Sherrington, 255/259, 330 



Shortt, 44, 47 



Shrew, breeding season of, 60 ; 

 fcetal nutrition in, 372, 377, ! 

 391 sq., 452-5 



Siebold, von, 186, 628 sq. 



Sigismund, 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 



Sinety, 510. Se also De Sin6ty 

 Siphostomafloridce, 652 

 Sipunculids, 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, 653. 658 



- Tyler, 542 

 Smyth, 126 

 Snail, 186 



Snakes, scent-glands of, 31 



Snipe, 27 



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

 233, 439 



Sokoloff, 317 



Soli, 349 



Somerset, 58 



Sow, cestrous cycle in, 50, 334 ; 

 ovulation in, 135 ; 145 ; in-breed- 

 ing in, 208 ; fcetal nutrition in. 

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

 rition in, 537 ; fertility of, 586, 

 591, 600, 605, 671 



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

 140, 165, 181 sqq., 203 



Sparrow, 24, 26, 157 



Speeht, 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. 



Spermophilus, 150 



Sphoerechinus, 179, 300 



Sphcer echinus granulosus, 293, 300 



Spider crab, 307 



Spiegelberg, 542 sq. 



Spiegelberg and Gscheidlen, 520 sq. 



Spina, 254 



Spinax, 151 



