INDEX 



759 



Prosencephalon, 60S 

 Prosoma, 222 

 Prosopyles, 84 

 Prostate gland of leech, 183 



of rabbit, 456 

 Prostomiuni of earthworm, I'^g, 

 168, 170 



of Nereis, 177 

 Protandry, 6 

 Proteins, 500 



composition of, 7 



digestion of, 444 



formation of, by plant, 21 



of the food, 7, 445 

 Proteoses, 444 

 Proterospongia, 82, 83 

 Prothorax, 228 

 Protocercal, 552 

 Protochordates, 310 

 Protogyny, 6 

 Protonephridium, 12 1 

 Protoplasm, 15, 4gS 

 Protopodite, 198 

 Protopterus, 546, 590 

 Prototheria, 496 

 Protozoa, 26, 78 



parasitic in man, 62 

 Protura, 249 

 Proventriculus of cockroach, 232 



of crayfish, 204 



of pigeon, 407, 594 

 Proximal, 188 

 Psalterium, 594 

 Pseudobranch, 322 

 Pseudo-hearts, 167 

 Pseudonavicella, 45 

 Pseudopodia, 505 



of Amceba, 26, 28 



of Hydra, 96, 97, loo 

 Pseudorumination, 445 

 Pseudopodiospores, 45 

 Pseudotracheae, 244 

 Psocoptera, 250 

 Pterobranchia, 310 

 Pterodactyl, 557, 579 

 Pterygota, 249 

 Pteraspida, 520, 551 

 Pterylse, 395 

 Ptilinum, 259 

 Ptyalin, 444 

 Pubis, 561 



of frog, 358 



of pigeon, 406 



of rabbit, 436 

 Pulex irritans, 148, 260 

 Pulmonary cavity, 266 

 Pulp of tooth, 363 

 Pulmonata, 284 



Pulse, 537 



Pupa, 247 



Pupil, 465 



Pygostyle, 402 



Pyloric sphincter of dogfish, 322 



of rabbit, 442 

 Pylorus of frog, 365 



of rabbit, 442 

 Pyramids, 462 

 Pyriform lobe, 460 



Quill, 395 

 Quinine, 76 



Rabbit, 417, 484, 557 



alimentary system of, 438 



arteries of, 450, 452 



backbone of, 422 



blood of, 452 



blood vessels of, 442, 447 



brain of, 459, 460, 461 



circulatory system of, 447 



coelom of, 420 



colours of, 699 



development of, 664 



digestion in, 444 



ductless glands of, 443 



excretory organs of, 455 



external features of, 417 



heart of, 447 



limbs of, 418, 434 



nervous system of, 458 



reproductive organs of, 455 



respiratory organs of, 446 



sense organs of, 439, ^65 



skeleton of, 421 



skull of, 433 



thorax of, 420 



veins of, 451, 452, 606 



vertebrae of, 423 

 Rachis, of feather, 395 



of gonad of A scar is, 138 

 Radialia, 320, 554 

 Radial symmetry, 106 

 Radiolaria, 80 

 Radius, 286 

 Radula, 267, 285 

 Rain worm, 144 



Rami communicantes of spinal 

 nerves, 338, 384, 388, 463, 

 614 

 Rana esculenta, 549 

 Rana temporaria, 345. See Frog 

 Rat, 472, 485 

 Ratitae, 550 

 Rattiis novvegiciis, 472 

 Rays (fishes), 544 



