1 



444 



INDEX- — GLOSSARY. 



Cyclosporeae, 247 



Cyclostomata — Cyclostomes, 627 



structure of, 627 

 Cyme, 1 18 



Cymose inflorescence, 25 

 Cynips, 764 

 Cyprcpedium, 850 

 Cypselomorphas, 650 

 Cysticercus, 755 

 Cystoflagellata, 512 

 Cytoplasm, 672 



division of, 685 



function of, 680, 682 



Daddy-long-legs, 570 

 Damsel flies, 584 

 Darning needle, 582 

 Dasypeltis, 844 

 Day flies, 584 

 Decapoda, 561, 616 

 Decay, 670 



Deciduous, falling off (especially of 

 leaves) . 



plants, 197-198 

 Deer family, 666 

 Degeneration, 588 

 Dehisce (of a fruit) — to open. 

 Dentine, the bony substance of teeth 

 lying beneath the enamel, 348 

 Dermis, 70 



of mammal, 343 



origin of, 721 

 Desmidiaceae, 235 

 Development of crayfish, 504, 505 



of insect, 505 



of vertebrate, 506 



progressive, 738 



regressive, 738 



types of, 707 

 Devil fish, 167 

 Devil ray, 169 



Devil's horse — praying mantis, 582 

 Diadelphous, 133 



Diastatic (of a ferment) — having the 

 power of converting starch 

 into sugar. 

 Diatoms, 233 

 Diatomes, growth of, 727 

 Dibranchiata, 616 

 Dichogamy, 31, 142 

 Dicotyledons, 171, 172, 300 



development of, 709 

 Difflugia, I 

 Differentiation, 323, 725 



ofjtissues, 22, 96 

 Digestion, 326, 452- 



Numbers refer to paragraphs; Black Face 



Digestion by bacteria, 453 



in amoeba, 452, 453, 464 



in arthropods, 458, 459, 467 



in coelenterates, 454, 465 



in crayfish, 467 



in flatworms, 454 



in hydra, 454 



in sponges, 454 



in_ worms, 455-457, 466 

 Digestive ferments, 463 



glands of vertebrates, 461 



tract of crayfish, no 

 of grasshopper, 161 

 of man, iii 



of Nereis, 104-107, 109 

 of vertebrates, 460 

 Digitigrade (of certain mammals) — 



standing on the toes, 663 

 Dimorphic — two types of form in the 



same species, 143 

 Dimorphism, 225, 226 



seasonal, 742 



sexual, 739, 856 

 Dinoflagellata, 512 

 Dinornis, 650 

 Dinornithes, 650 

 Dioecious, 128 

 Dionaea, 50-52 

 Diphycercal, 631, 632 

 Diplopoda, 575 

 Dipnoi, 631 



Diprotodontia, 652, 656 

 Diptera, 587 

 Discomycetes, 258 

 Dispersal larvae, 831 

 Divers, 650 

 Division of labor, 725 

 Dodder, 230, 751 

 Dodo, 650 

 Dogs, 652 

 Dogwood, 33 

 Dolphin, 652, 665 

 Dolichoglossus, 618 



gill slits of, 618 



nervous system of, 618 



notochord of, 618 



structure of, 618 

 Domesticated animals, 820 



plants, 820 

 Dominant characters (in heredity), 



783 

 Doodle bug, 585 

 Dorsal, 312 

 Dove, 650 

 Dragon flies, 584 

 Dromedary, 666 

 numbers refer to figures. 



