700 



INDEX 



Nikolski, 255 



Niskoubina, 344 



Nitabuch. 477 



Nolf, 367, 419, 460 sqq. 



Noorden, von, 68, 354, 356, 497, 510, 



513, 515 

 Nudibranohs, 14 

 Nussbaum, 141, 312 aq., 632 

 Nycticd)us, 408 

 Nylghau, oestrous cycle in, 49 



O 



Oceanu and Babes, 356, 567 



Ocneria dispar, 307 



Oddi and Vlcarelli, 519 



CEstrus or CEstrum, defined, 36 



CEstrous cycle, chap, ii., 335 



Offergeld. See Kruieger and Ofler- 

 geld 



OUver, 83, 85, 138, 614 



Onchorhynchua, 30 n. 



Onuf,253 



O.jgenesis, chap. iv. 



Ophelia, 221 



Ophiothrix fragilia, 204 n. 



Opossum, 385, 484 



Orang-utan, oestrous cycle in, 63 



Ornithodelphia, 380 



Omithorhynchus paradoxus, 149 



Orton, 653 



Orycieropus, 375 



Osborne and Campbell, 275 



Oser and Schlesinger, 537 



Oshlma, 512 



Ostwald, 300 sq. 



Ott, 67, 68 



Otter, breeding season of, 59 ; 416 



Oudemans, 239, 307 



Ovariotomy, 314, 316 sqq. ; and 

 menstruation, 330 sqq. ; and preg- 

 nancy, 341 sqq. 



Ovary, changes in, during the 

 oestrous cycle, chap. iv. ; in- 

 fluence of, 314 aqq. ; Man, 314, 

 316 aq., 330 sqq. ; deer, 314 ; 

 poultry, Z15sq. ; rabbit, SIT sqq. ; 

 guinea-pig, 320 ; rat, 321 sqq. ; 

 internal -secretions of, chap. ix. 

 paaaun ; innervation of, 526 



Overlach, 366 



Ovis, 150 



Ovia ammon, 43 



Ovia argali, 43 



Ovis burrhel, 42 aq. 



Ovia canadenaia, 43 



Ovia muaimon, 42 



Ovis poU, 43 



Ovia tragelaphua, 42 



Ovia vignei, 43 



Ovulation, 125 aqq. ; rabbit, 134 ; 

 moiise, 135 ; rat, ib. ; guinea-pig, 

 ib. ; dog, i6. ; sow, ib. ; ferret, 

 136, mare, ib. ; donkey, i6. ; cow, 

 ih. ; sheep, ib. ; bat, 136 sq. ; 

 Primates, 137 ; Man, 137 sqq. ; 

 Invertebrata, 137 n. ; and men- 

 struation, 330, 333 n., 335 



Ovum, formation of, 160 sq. ; 

 chap. X., part ii., passim ; the 

 ovarian, 370 sq. ; the fertilised, 

 371 sqq. 



Owen, 31, 42, 61, 247, 359 



Ox, 288, 296, 306, 349, 486 



Pachywronvys dv/prabi, 41 



Paladino, 146 



Palolo worms, 10 sq., 134 



Paludina, 175, 633 



Papio, 63 



Papio porcarius, 64 



Paramoecium, 6, 212 aqq. 



Paramcecium cavdatum, 211 



Parthenogenesis, 216 sqq. 



Partvirition, 527 sqq. ; human, 



531 sqq., 538 ; other Mammalia, 



535 sqq. ; nervous mechanism of, 



537 aqq. 

 Patella, 14, 216, 224 n. 

 Paterson, 143, 365 

 Paton, Noel, 18, 19, 278 sq., 349, 



496, 508 

 Paton, Kerr, and Watson, 434, 508 

 Payer, 511, 520 sq. 

 Payne, 634 

 Pearl, 211 



Pearl and Surface, 333, 60S, 651 

 Pearson, Karl, 202, 605, 684 

 Pearson, Lee, and Bramley-Moore, 



605 

 Peel, 681 

 Pelican, 30 

 Pelikann, 235 

 Pelodytes, 203 

 Pembrey, 272 

 Pepere, 349 



Perameles, 39, 339, 384 sq. 

 Perch, 277 aq. 

 Perez, 158, 176, 217, 629 

 Peripatua, 11 

 Perry-Coste, 72 

 Peters, 361, 366, 466 aq., 469, 471, 



473, 479, 515 

 Petrel, stormy, 26 

 Petrunkewitsch, 628 sq. 

 Plannenstiel, 264, 368 

 Pfeffer, 215 



