448 



INDEX GLOSSARY. 



Heliozoa, 510 

 Hellgrammite, 585 

 Hemibasidialis, 252 

 Hemiptera, 763 



wings of, 797 

 Hepaticae, 267 

 Hepatic, pertaining to the liver. 



caeca, 553 



portal vein, the vein which leads 

 from the intestine to the liver, 

 472 

 Herbivorous feeding on vegetable 



matter. 

 Heredity, 782 



Mendel's laws of, 782 



physical basis of, 785 

 Hermaphrodyte having the organs of 

 both sexes in one individual, 

 502 



Hermit crab, 562 

 Heron, 650 

 Herring, 636 

 Heterocercal, 633 

 Heteronymous, 336 

 Heteropoda, 600, 60 1 

 Heterotricha, 515 

 Hibernia (moth), 245, 246, 739 



moth, rudimentary wings of, 797 

 Hibernation, 842 



"Higher" and "lower" animals, 332 

 Hinge joint, 413 



ligament, 605 

 Hippopotamus, 666 

 Hirudinea, 546 

 H 2 O symbol for water. 

 Holocephali, 630 

 Holophytic, 744 

 Holothuria, symmetry of, 320 

 Holothuroidea, 556 

 Holotricha, 515 

 Holozoic, 744 

 Hominidae, 669 

 Homo, 669 

 Homonymous, 336 

 Hoofs, 347 

 Horns, 347 

 Horse, 666 



evolution of, 248, 807 



-hair snake, 756 



-shoe crab, 565 

 Host an organism that harbors a 



parasite. 

 Hosts, of bacteria, 773 



alternation of, 769 

 Humming birds, 650 

 Hyaenidae, 663 



Hybrid, 147, 781 

 Hydra, 69, 304 



budding in, 499 



chemical sense of, 367 



digestion in, 454 



excretion in, 489 



glands of, 349 



gonads of, 500 



integument of, 339 



muscle fibres of, 408 



reproduction in, 499 



response in, 408 



sense organs of, 358 



sensitiveness to light, 375 



sexual reproduction in, 500 



supporting lamella, 415 

 Hydractinia, 222 

 Hydroid, IM. 222 

 Hydrophytes, 103- 192 

 Hydropterides, 286 

 Hydrotropism, 49 

 Hydrozoa, 525 

 Hyena, 663 

 Hymenoptera, 590 



polymorphism in, 740 

 Hypha one of the filaments which 

 make up the mycelium of a 

 fungus. 

 Hypocotyl, 52 

 Hypoderma, 761 



Hypogynous (of stamens, etc.) at- 

 tached below the ovary. 

 Hypotricha, 515 

 Hyracoidea, 666 

 Hyrax, 666 



Ibis, 650 

 Ichneumon, 663 



fly, 235, 590, 762 



Imago, 586 

 Immunity, 775 



acquired, 777, 780 



natural, 776, 780 



active, 778, 780 



passive, 779, 780 

 Impennes, 650 

 Incus anvil. 



Indehiscent (of fruits) not opening. 

 Indian pipe, 751 

 Indirect development, 722 

 Individual, 725 

 Indusium, the membrane covering or 



enclosing a sorus, 285 

 Inferior (of ovary) below the calyx, 



134 

 Inflorescence, 117-120 



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



