INDEX. 
PAGE 
Cuneiforms 473 
Cursorial adaptation in mam- 
mals 532 
Cuttle 276 
Cycloid scale 436 
Cyclops 243 
Cyclostomata 432 
Cycloturus - 559 
Cydippe_ - 131 
Cynocephalus 590 
Cynoidea 581 
Cynips 249 
Cypris 243 
Cysticercus - 149 
Cysts of Protozoa 89, 95 
Cytoplasm 35 
DADDY-LONG-LEGS 252 
Daphnia - 242 
Dart sac of snail 268 
Dasse 567 
Dasypodidze 559 
Dasypus 559 
Dasyuride - 502 
Dasyurus 502 
Dead-man’s-fingers 125 
Decapoda 244 
Deer - 576 
Delamination 51 
Delphinus 579 
Dental formulz - 460 
Dentition, Acrodont 441 
" Bilophodont 462 
" Bunodont 462 
" Diphyodont 460 
" Haplodont - 462 
" Homodont - 441 
" Heterodont 460 
" Lacteal 460 
" Multitubercular - 462 
" Pleurodont 441 
" Polylophodont 569 
" Polyphyodont 460 
" Secodont 462 
" Triconodont 461 
" Tritubercular - 461 
" of Mammals 460 
Dendrohyrax - 568 
Dermis of Vertebrata 405 
Dermoptera 585 
619 
PAGE 
Descent 80 
nu of Horse 522 
Development of— 
Amphioxus 304 
Anodonta 275 
Ascidia 293 
Balanoglossus 165 
chick 376 
crayfish 221 
- Crustacea 241 
earthworm 201 
Echinodermata 161 
eye 408 
feather 361 
frog - 353 
haddock 337 
hair - 456 
Hydra 116 
Insects 246 
Mammalian teeth 458 
Mammals 475 
Peripatus - 233 
Petromyzon 433 
placenta 48t 
Reptilia 440 
skate 329 
skull 416 
Sponges 105 
Tunicata 293 
Vertebrata : 426 
Devonian System (Period) 68 
Diaphragm 386 
Dibranchiata 285 
Dicotyles 575 
Didelphidze 502 
Didelphys 502 
Diffuse Placenta - 482 
Digenea- 149 
Digestive System . 15 
Dimorphism of sexes - 44 
Dinornis 452 
Dinosauria 447 
Dinotherium 571 
Diphycercal : 435 
Diphyodont dentition - 460 
Diploblastic 25, 50 
Dipnoi 439 
Diprotodon 505 
Diprotodontia 503 
Diptera 250 
