634 INDEX. 



Parturition : Rabbit, 444-445 ; Man, 614-615 



Pecten : Chick, 279 



Pectoral girdle : Frog, 212-213 ; Chick, 332 



Pelagic life of Amphioxus, 47 



Pelvic girdle : Frog, 213-215; Chick, 334 



Pelvic symphysis : Frog, 213 



Penis : Man, 597 



Pericardial cavity : Frog, 167, 169; Chick, 321-322 ; Rabbit, 427-428 



Perilymph: Frog, 142; Man, 543 



Periotic capsule : Frog, 143, 204 ; Chick, 328, 331 ; Rabbit, 396, 432 ; Man, 



543-544 

 Peripheral nervous system : Frog, 126-134; Chick, 261-274 ; Rabbit, 382-386 ; 



Man, 521-538 



Periplacental folds of uterus : Rabbit, 435 

 Peritoneum : Chick, 321 

 Peri vascular cell : Rabbit, 438 

 Perivitelline fluid : Frog, 98, 100 

 Permanent dentition : Rabbit, 404 : Man, 561 



Permanent ova : Frog, 95 ; Chick, 230 ; Rabbit, 346-347 ; Man, 453 

 Pes: Chick, 335 

 Peyer's patch : Man, 549 

 Pharynx: AmpUioxus, 40, 75-80; Frog, 152; Chick, 283-286; Rabbit, 400- 



403 ; Man, 545, 546, 549-553 

 Phrenic nerve : Man, 527 

 Pia mater : Rabbit, 381 



Pineal body: Frog, 123; Chick, 256-257; Rabbit, 374 ; Man, 520 

 Pinna: Rabbit, 398; Man, 499-500, 544 



Pituitary body : Frog, 124-125 ; Chick, 259, 289 ; Rabbit, 376, 400 

 Placenta : Rabbit, 343, 370-371, 434-445 ; Man, 611-615 

 Placental area of blastodermic vesicle : Rabbit, 437 

 Placental folds of uterus : Rabbit, 435 

 Pleural cavity : Chick, 322 ; Rabbit, 428 ; Man, 563 

 Plica semilunaris ; Man, 541 

 Polar body : 8-11, 15-17 ; Amphioxus, 49 ; Frog, 97-99 ; Hen, 231 ; Babbit, 



349, 350 ; Man, 471 



Polar mesoblast cells : Amphioxus, 55, 60, 65 

 Pons Varolii : Rabbit, 381 ; Man, 514, 521 

 Position of embryo : Chick, 225, 228 ; Rabbit, 438 

 Postanal gut : Prog, 156-157 ; Rabbit, 404 

 Postbranchialbody : Frog, 164 



Posterior nares : Frog, 136, 148 ; Chick, 275, 289 ; Man-, 497, 553-554 

 Praoral pit : AmpUoxus, 70, 81-82 

 Precoracoid : Frog, 213 

 Pref ormation : 219 



Pregnancy, duration of : Man, 465-467 

 Prepubic process : Chick. 334 

 Prepuce : Man, 597 

 Primary gill-slits : AmpUoxus, 75-78 

 Primary reproductive cells : 12 

 Primary sulci : Man, 518-519 



Primitive groove : Frog, 111 ; Chick, 238 ; Babbit, 361 

 'rimitive ova : 12; Frog, 95; Chick, 229-230; Babbit, 345-346; Man, 451- 



Primitive sperm cells : Man, 592 



Primitive streak: Frog, 111, 149; Chick, 237-239, 240, 252; Rabbit, 361; 



Man, 479 



Pro-amnion : Chick, 241, 245 ; Rabbit, 369 

 Processus globularis : Man, 497, 504, 553-554 



octodaum: Frog, 145, 149-150; Chick, 283, 291-292; Babbit, 404; Man, 



546, 549 

 Pronephros: Frog, 185-J9J ; Chick, 318-319 ; Babbit, 421 



