454 



INDEX — GLOSSARY. 



Pollination, 135-147, 845 



by insects, 140, 143 



by wind, 139 

 Polychxta, 544 

 Polygala, 30, 31 

 Polymorphism, 221-223, 527, 458, 581, 



5S3 

 in bryozoa, 740 



in hydrozoa, 740 



in plants, 743 

 Polyps, 525 

 Polypodium, 40, 41 

 Polyprotodontia, 652, 655 

 Polyzoa, 54S 

 Porifera, 519- 

 Porpoises, 652 

 Posterior, 311 

 Prawns, 561 

 Praying mantis, 582 

 Primates, 652, 668 

 Proboscidia, 666 

 Proboscis, 586 

 Procyonidae, 663 



Proglottis, segment of a tapeworm, 537 

 Pronuba, 852, 853, 875 

 Prosimiae, 668 

 Protective coloration, 861, 862 



in grasshoppers, 262, 263 , 



resemblance, 264, 863 

 Proteolytic — having the property by 

 which proteids are changed 

 into peptones, 461 



ferments, 463 

 Prothallium, the thalloid gametophyte 

 of certain pteridophytes, 280 

 Prothorax, 578 

 Protobasidiomycetes, 254 

 Protoascales, 240 

 Protonephridia, 534, 541 

 Protonema, the green thread-like part 

 of the gametophyte of mosses, 



275 

 Protoplasm, 13 



chemical properties of, 15, 68, 672, 

 680 



contractility of, 680, 681 



irritability of, 680 



structure of, 178, 672 

 Protozoa, 507- 



as parasites, 765 



conjugation in, 498 



sensitiveness to light, 355 

 Protracheata, 573 

 Pseudopodium 276 

 Psittaci, 650 

 Pteridophyta-Pteriodophytes, 175, 280 



Ptyalin, 461 



PufT balls, 255 



Pulmonata, 600, 602 



Pupa, 586, 723 



Pupil, 379 



Pygopoda, 650 



Pyrenomycetes, 259 



Python, rudimentary appendages, 795 



Quail, 650 



Queen conch, shell of, 218 



Rabbits, 652, 660 



Raceme, 119 



Racemose inflorescence, 26 



Raccoon, 663 



Radial symmetry, 316 



Rachis, 29 



Radiolaria, 510 



Radula, 593, 596 



Rails, 650 



Ratitaj, 650 



Rats, 652, 660 



Ravens, 650 



Receptacle, 122, 130 



Receptors, 439, 441 



Recessive characters, in heredity, 783 



Red blood corpuscles, 483 



Redi, Francesco, 1626-98, Italian 



naturalist, 670 

 Redii, 754 



Reduction division, 695, 696, 698 

 Regeneration, 726 

 Regions of growth, 102 

 Reproduction, 330, 495- 



in amoeba, 495, 496 



in annelids, 501, 502 



in crayfish, 503, 504 



in hydra, 499 



in sponge, 523 



in vertebrates, 506 

 Reptilia — reptiles, 691 

 Reptiles, glands of, 350 



structure of, 641 

 Reserve food, 672 

 Resemblance, protective, 863 

 Respiration, 308, 327, 475- 



in amoeba, 476 



in crayfish, 477 



in earthworm, 476 



in fishes, 479 



in frog, 476 



in insects, 478 



in nereis, 476 



in plants, 91 



in sea anemone, 476 



Numbers refer to paragraphs; Black Face numbers refer to figures. 



