INDEX. 



483 



Polar bodies, 1750! ova of mam- 

 mals, 3 r i 

 Polycotyledonary placenta, 359 ; 



histology of, 360 

 Pons Varolii of birds, 369 ; of 



mammals, 370 

 Position of embryo chick of third 



and fourth days, 113 116 

 Postanal gut, of chick, 175; of 

 rabbit, relation of, to primitive 

 streak, 329 



Posterior nares, chick, 202 

 Potassium bichromate, 460 

 Premaxilla bones, chick, 246 

 Prenasal bones of chick, 246 

 Presphenoid region, chick, 240 



T, ? 46 



Primitive groove of chick, 56 ; of 



rabbit, 320 

 Primitive streak of chick, 52 62 ; 



of chick from 20 to 24 hours, 



70; of rabbit, 319 

 Processus infundibuli, chick, 121 

 Proctodasum of chick, 175; of 



mammal, 422 

 Pronephros, 218 



Pronucleus, female, 17; male, 17 

 Prootic, chick, 246 

 Protovertebrae (see Mesoblastic 



somites) 



Pterygo-palatine bar, chick, 243 

 Pterygoid bones, chick, 246 

 Pubis, chick, 234 

 Pulmonary veins of chick, 228, 



289 290 

 Pulmonary arteries of chick, 294 



298; mammalia, 407 

 Pupil, chick, 142 

 Pyramids of cerebellum, 368 



Q 



Quadrato-jugal bones, 246 

 Quadrate, chick, 243 



E 



Kabbit embryo, growth of, 327 



334; placenta of, 353 

 Badius, chick, 234 



Eat, inversion of the layers in, 



34i 

 Eecessus labyrinthi, mammalia, 



39 39 8 

 Eecessus vestibuli (see Aqueductus 



vestibuli) chick, 203 

 Eespiration of chick, 303 ; of third 



day, no 



Eete vasculosum, mammalia, 4 14 

 Eetina, chick, 142, 144146 

 Eibs, chick, 234; mammalia, 405 

 Eodentia, placenta of, 353 

 Eods and cones of retina, chick, 



146 



Eostrum, chick, 246 

 Euminants' placenta, histology of, 



Sacculus hemisphericus, mam- 

 malia, 390 398 

 Salivary glands, mammalia, 420 

 Scala media (see Cochlear canal) 

 Scala tympani, mammalia, 395 



397 



Scala vestibuli, mammalia, 395 



397 

 Scapula of chick, 234 



Sclerotic coat of eye of chick, 141 



Sclerotic capsules, mammalia, 405 



Scrotum, mammalia, 416 



Sebaceous glands, 366 



Secondary optic vesicle (see Optic 

 cup) 



Sections, method of cutting, 434 

 436 ; mounting of, 436 



Segmentation: of hen's egg, 18 

 24; meroblastic, 18; of mam- 

 malian ovum, 312 314; of 

 hen's egg to observe, 458; of 

 mammalian ovum to observe, 

 461 



Semicircular canal : of chick, 

 158 ; mammalia, 390 398 



Semi-lunar valves, chick, 258 



Sense capsules of chick, 211 212 



Septum lucidum, mammalia, 383 



Septum-nasi, chick, 246 



Serous membrane of chick, 32 



