INDEX 



253 



Crustacea, 93 ; anatomy of, 98, 107 ; 



multiplication of, 98, 110. 

 Cteniza (illus.), 137. 

 Cuckoo, 220. 

 Cucumaria (illus.), 146. 

 Cuticle, 14. 

 Cuttlefish, 87. 

 Cutworm, 112. 

 Cyclops (illus.), 95; anatomy of, 



98. 

 Cyclostomes, 157. 



Daddy-long-legs, 130. 



Decapods, 102. 



Deer, 222. 



Dendrostoma (illus.), 68. 



Devil-fish (illus.), 87. 



Didelphys virginiana (illus.), 231. 



Diemyctylus torosus (illus.), 182. 



Digestive tract, use of, 3. 



Diptera (illus.), 119. 



Division of labor, 21. 



Dog, 223. 



Dolphin, 221. 



Dove, 205. 



Dragon-fly (illus.), 118. 



Duck-mole (illus.), 216. 



Ducks (illus.), 200. 



Eagle, golden, 205; bald (illus.), 

 205. 



Earthworm (illus.), 55; anatomy, 

 55 ; distribution, 59. 



Echinoderms, 141 ; locomotor sys- 

 tem, 146 ; development of, 150. 



Ecology, 1. 



Eel, 163. 



Egg, fertilization of, 20, 21. 



Elk (illus.), 222. 



Encystment of protozoa, 13. 



Epialtus productus (illus.), 104. 



Epidella squamula (illus.), 49. 



Eretmochelys imbricata (illus.), 



195. 



Esox (illus.), 165. 

 Euglena (illus.), 17. 

 Eurypelma lentzii (illus.), 136. 



Fairy shrimp (illus.), 94. 



Felis concolor (illus.), 242. 



Ferse, 239. 



Firefly, 124. 



Fish, general characters of, 154; 



respiration, 155 ; anatomy, 168 ; 



breeding habits, 171. 

 Fishmoth, 117. 

 Fish- worm (illus.), 55. 

 Flagellum (flagellum, a whip), 14. 

 Flea, 122. 

 Flicker, 221. 



Flies, 122 ; development of, 123. 

 Flounders, 168. 

 Fox (illus.), 241. 

 Frog, 178. 



Cfammarus (illus.), 106. 



Gallime, 217. 



Ganglion (ganglion, a swelling), a 

 swelling of the nerve-cord due 

 to the accumulation of nerve- 

 cells, 79. 



Ganoidea, 161. 



Garpike, 161. 



Garter-snake, 193. 



Gasteropod (illus.), 80; anatomy and 

 physiology, 81. 



Gastric mill (illus.), 107. 



Gastrula (diminutive of gaster, 

 stomach), 21. 



Geese, 213. 



Gelasimus (illus.), 104. 



Gephyrean worms (illus.), 67. 



Gila monster (illus.), 193. 



Glass-snake, 191. 



