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381 Phyla, 97 Phylloxera, 34 Physiological processes, 196 Physiology, comparative, 431 Pici, 385 Pigeons, carrier, 373 ; domestic, 364 ; fantail, 373 ; passenger, 382 ; pouter, 373 ; tumbler, 372, 373 Pigs, 413 Pill-bug, 147 Pinnae, 398 Pisces, 316 Platyhelminthes, 229, 298 Plectoptera, 26, 99, 100 PLINY. 440 460 GENERAL ZOOLOGY Plovers, 380 ; golden, 391 ; upland, 381 Plowshare bone, 370 Plumatella, 231 Polian vesicles, 243 Pollination, 1)1 Polymorphism, 49 Polyp, 252 ; fresh-water, 203 Polyzoa, 233 Porcupine, 418, 419 Porifera, 278, 297 Porpoise, 412 POTTS, PROFESSOR, on habits of sponge, 276 POULTON, PROFE.SSOR, on the vaporer- moth, 56 Prawn, 142 Premolars, 400 Primates, 423 Prismatic layer, 159 Proboscidea, 416 Proboscis, 46, 304 Procyonidse, 420 Pronuba, 92 Prostomium, 196 Protective mimicry, 48 Protective resemblance, 18 Proteids, 198 Prothorax, 3 Protoplasm, 202, 205, 211, 280 Protopodite, 1::10 Protorohippus, 428 Protozoa, 291 Psalterium, 417 Pseudopodia, 280 Psittaci, 384 Psychology, comparative, 436 Pterosaurs, 362 Pulp-cavity, 400 Pulvillus, 4 Puma, 420 Pupa, 36 Pygopodes, 375 Quail, 381, 382, 395 Quaternary Period, 431, 433, 434 Rabbit, cottontail, 419; domestic, 419; gray, 419; jack, 419 "Raccoon, 420 Rachis, 366 Raptores, 383 Rasping-tongue, 169, 177 Rational acts, 87 Hats, 418 Rattlesnake, 354, 355 RAY, JOHN, 443 Rays, 317, 347 RE DI, FRANCESCO, 446 Reef, barrier, 262; fringing, 262; coral, 261 Reflex action, 208 Regeneration, 244 Rejuvenescence, 289 Repellent odors, 32 Reproduction, by artificial parthe- nogenesis, 290 ; by budding, 258 ; by conjugation, 289; by eggs and spermatozoa, 209 : by equal divi- sion, 282, 288 ; by gemmules, 276; by parthenogenesis, 34 ; by spores, 284 ; by statoblasts, 233 Reptiles, Age of, 360, 362, 396, 410, 428 ; definition of, 351 ; geological development of, 360 Resemblance, protective, 18 Respiration, 203 Reticulum, 417 Rheas, 374 Rhinoceros, 413, 414, 416, 434 Rhinoderma, 343 Robin, American, 390 Rodents, 418, 431 Ross, DR. , on life-history of malarial parasites, 286 Rostrum, 127 Rotifer, 230 Rotifera, 231 Rumen, 417 Ruminants, 417 RYDER, PROFESSOR, on environment of oyster, 168 Salamanders, 339; Alpine, 342; blunt-nose, 340 ; Texan cave, 340 Salmon, Atlantic, 320 Sandpipers, 380 Sand worm, 222 Saponification, 200 Sapsucker, 385, 393 Sarcodina, 291 Saw-flies, 82 Scale-insects, 35, 98 ; San Jose, 41 Scallop, 169 Scarabs, 44 INDEX 461 SCHIEMENZ, PROFESSOR, on food-get- ting habits of starfish, 241 SCHLEIDEN, M. K., 445 SCHULTZE, MAX, 446 SCHWANN, THEODOK, 446 Scorpions, 121 SCUDDER, H. Trematoda, 227, 229 Trematode, 174, 226 Triceratops, 361 Trichina, 229 Trilobites, 153, 296, 347 Trocheiniintb.es, 231, 298 Trypsin, 199 Tube-feet, 239 Tubinares, 376 Tunicata, 303 Turbellaria, 226, 229 Turdidse, 390 Turkey-buzzard, 384 Turkeys, 381 Turtles, 357 ; green, 357 ; hawk- bill, 357 TYNDALL, JOHN, 447 Tyrannidse, 388 Umbo, 157 Ungulates, 413, 431, 434 ; even-toed, 416; odd-toed, 416 Urethra, 404 Uric acid, 162 Urodela, 339 Urostyle, 331 Ursidse, 420 Uterus, 405 Vacuoles, contractile, 282, 288 Vacuoles, food, 287 Vane, 366 Varieties, 96 Venues, 234 Vertebrates, 292, 301 VESALIUS, ANDREAS, 441 Vireos, 388, 389, 395; white-eyed, 389 VON BAER'S law, 100 Vultures, 383 ; black, 384 Walking-leaves, 22 ; -sticks, 22 WALLACE, ALFRED RUSSEL, 102, 450 Warblers, wood, 388, 395 Warning coloration, 40 Wasps, digger, 69 ; mud-dauber, 69 ; social, 65 ; solitary, 68 Water-boatmen, 30 Water-moccasin, 355 Weevils, 90 ; cotton-boll, 90 WEISMANN, AUGUST, 451 Whale, sperm, 413; whalebone, 413 Whip-scorpion, 122 WHITE, GILBERT, 444 WILLEY, PROFESSOR, on habits of Nautilus, 192 Wolves, 420 Woodchuck, 418 Woodcock, 381 Woodpeckers, 385, 395, 397 ; golden- winged, 385; sap-sucking, 385, 393; three-toed, 385; yellow-bel- lied, 385 Worm, acorn-tongue, 304 ; tube, 224 Wren, house, 395 AVRIGHT, PROFESSOR R. RAMSAY, on intelligence of monkeys, 426 Xiphosura,154 Zoea, 153 Zooid, 231 Zoology, among the Greeks and Romans, 437 ; definition of, 436 ; definition of economic, 436; of the sixteenth century, 441 ; of the seventeenth century, 442; of the eighteenth century, 443; of the nineteenth century, 445; system- atic, 436 THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW AN INITIAL FINE OF 25 CENTS WILL, BE ASSESSED FOR FAILURE TO RETURN THIS BOOK ON THE DATE DUE. THE PENALTY WILL INCREASE TO SO CENTS ON THE FOURTH DAY AND TO $1.OO ON THE SEVENTH DAY OVERDUE. R/Ur ?~* ^936 SEP 2 0 J939 JUL 3 1940 LD 21-100ra-8,'34 f~-<. .BIOLOGY - ' (7 UNIVERSITY OF CALIFORNIA LIBRARY. 