476 



Cricket, house, *I93 T 

 Cricket, 192. 

 Crinoid, *i26. 

 Crinoidea, 121, 125. 

 Crocodile, 326. 

 Crocodilea, 313, 325. 

 Crocodilus ainericanus, 326. 

 Crotalus, 322. 

 Crustacea, 144, 146 ; for 



structure of, 147. 

 Cryptobranchns, 298. 

 Ctenophora, 97, 107. 

 Cuckoos, 354. 

 Cucumaria, 124. 

 Cucumber-beetles, 209. 

 Culex sp., 204, *2O5. 

 Curculio plum, ^214. 

 Curculio quince, *2i2, 213. 

 Curlew, long-billed, 350. 

 Cuttlefishes, 255. 

 Cyclas, 247. 

 Cyclophis tzstivus, 320. 

 Cyclops, 148, *I49. 

 Cyclostomata, 278. 

 Cytoplasm, 38. 



Dabchick, 343. 



Dactylus sp., 



Damp bug, *I5I. 



Darters, 282. 



Dasyatis, 281. 



Decapoda, 151. 



Decapods, 256. 



Deer, 396. 



Degeneration. .41 7. 



Dendrostotniuni cronjhelmi, *I34- 



Development, defined, 3 ; embry- 

 onic, defined, 62; post-embryonic, 

 defined, 62; simplest, 59. 



Diapheromera femorata, *427- 



Diaspis rosa>, ^198. 



Dictynidse, 235. 



Didelphis virginiana, 390. 



Dieniy stylus torosus, *299. 



Diemy stylus viridescens, 297. 



Dimorphism, 96. 



Diptera, 201. 



Distribution, barriers to, 437; geo- 

 graphical, 435 ; laws of, 436 ; 

 local, of birds. 367; modes of, 437. 



Diver, great northern, 343. 



Dolphins, 393. 



Doris tuberculata, ^254. 



Draco, 319. 



Dratr on-fl ies. 7n/i. 



INDEX 



Dragon-fly, 

 Dragon, flying, 318. 

 Drawings, 447. 

 Dryobates fittbescens, 355. 

 Dry abates villosus, 355. 

 Duck, ruddy, 347. 

 Dyticus sp., 210. 

 Dytiscidse, 207. 



Eagle, bald, 352; golden, 352. 



Ear of locust, *i87. 



Earthworm, anatomy of. *I26 ; ali- 

 mentary canal of, *I26 ; cross- 

 section of, *I3I ; reproductive 

 organs of, *J-3O; structure and life 

 of, 127. 



Earthworms, 136. 



Echinoderm, development of, 119 ; 

 structure of, 117; shape of, 116. 



Echinodermata, 108 ; classification 

 of, 1 20. 



Echinodoris sp., *254. 



Echinoidea, 121, 122, 123. 



Eciton, 225. 



Ecology, animal, 403. 



Ectopistes migratorius, 351. 



Eel, 284. 



Eft, green, 297; western brown, 

 *299. 



Eggs of birds, collecting, 469. 



Eider, 347. 



Elasmobranchii, 279. 



Eiassoma, 271. 



Elk, *394, 396. 



Epeiridoe, 236. 



Ephemeiida, 194. 



Epialtus productits, * 1 53 . 



Equipment of laboratory, 450. 



Equipment of pupil, 447. 



Erethizon dorsatus, 391. 



Erethizon epixanthus, 391. 



Eretmochelys imbricata, 215. 



Erismatura rubida, 347. 



Eiimeces skeltonianus, *3i6. 



Eitpomotic gibbosuc, dissection of, 

 (facing) *263; life of, 270 ; struc- 

 ture of, 263. 



Exoccetus, 285. 



Eye, cornea of compound, of horse, 

 fly, *i86 ; section throiu ' 

 pound, of blow-fly, *i 



J^y0 of vertebrate, *378. 



Ealco sparverius, 353. 

 Kami'lv. rlpfinpfl. Tz. 



