INDEX 
Crustacea, 93 ; anatomy of, 98, 107; 
multiplication of, 98,110. 
Cteniza (illus.), 137. 
Cuckoo, 220. 
Cucumarva (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. 
258 
Eretmochelys imbricata (illus.), 
195. 
Esox (illus.), 165. 
Euglena (illus.), 17, 
Eurypelma lentzii (illus.), 136. 
Fairy shrimp (illus.), 94. 
Felis concolor (illus.), 242. 
Fere, 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. 
Gammarus (illus.), 106. 
Galline, 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 gaséer, 
stomach), 21. 
Geese, 2138. 
Gelasimus (illus.), 104. 
Gephyrean worms (illus.), 67. 
Gila monster (illus.), 193. 
Glass-snake, 191. 
