318 



INDEX. 



C. 



Caddioe-fly, development of, 298. 

 Carrion-beetle, 2'J1. 

 C'andina, 187, 246. 

 fells, the egg the type of all, 33. 

 Cellular structure of sponges, 42. 

 Centimetre, 17. 

 < '< iiinnn. '231. 



Cephalization, '211, 220, 230. 

 Dana on, 220. 

 etc., note on, 193. 

 Cephalopoda, 207. 



position of shell of, 212. 

 Cephalothornx, 219. 

 Ceratium, 147, 156. 

 Cerebral ganglion, 202. 

 Cereus, 58, 179. 

 Chelydra serpentina, 304. 

 Chelyosoma, 253. 

 Chemical affinity, natural, 7. 

 Chilodon, 167. 

 Chipping sparrows, 277. 

 ChlamKlomonas, 133, 145, 156. 

 Chorda, 143, 155. 

 Chorda ilnrsiilis, 229, 305. 

 Ciliata, 286. 

 Ciliated infusoria, 148. 

 Circulation in Insects, 224. 



plants, 166. 

 Cladophora, 140. 

 Clapare'de on Opalina, 245. 

 Classes of animals, transitions among, 



254. 

 Classification of Cuvier, 117. 



Lamarck, 117. 



of the principal groups, 



255. 



Clava, 75. 



Cobbold, on the development of a Sea- 

 anemone, 289. 

 Collar, nervous, 125, 225. 

 Compound individuals, 54. 

 Conferva*, spores of, 134. 

 Consanguinity, relations of, 236. 

 Contractile vesicle, 151, 163, 168. 



of Actinophrys, 47. 

 Contractility in animals, 144. 

 Cornuspira, 13. 

 Coryne, 75, 77, 242. 

 Creation, primary and continued, 30. 

 Creator, primary interposition of, 4. 

 Crustacea, 219. 



cephalization in, Dana on, 



220. 



Currents of circulation in sponges, 43. 

 Cuttle-fish, 207. 

 Cuvier, classification of, 117. 

 Cyclops, 220, 268, 274. 

 Cytoblastema, 45. 



D. 



Dana, J. D., on cephalization, 220. 



Danielssen and Koren on Siphonactinia, 



180. 



Decomposition, experiments on, 95, 97. 

 Degrees, phenomena of nature differ by, 



113. 



Demodex, 274. 

 Dendrocoelum, 92, 268. 

 Design, thoughtful, evidence of, 5. 

 Development of animals, 283. 



Articulata, 298. 

 Caddice-fly, 298. 

 Mollusca, 294. 

 Mystacides, 298. 

 Protozoa, 285. 

 Sea-anemone, 178, 289. 

 Vertebrata, 303. 

 Zoophyta, 289. 

 old theory of, 158. 

 progressive, 160. 

 phases of, common to all 



animals, 158. 

 theory, old, 3. 



new, 3. 

 Difflugia, 11. 

 Digestion in Rhizopoda, 14. 



mode of, among tape-worms, 



etc., 100. 



Digestive system of Infusoria, 167. 

 Diptera, 222. 

 Disc, germinal, 305. 

 Duality of individuals, 267. 

 Duck-billed quadruped, 53. 

 Duck-mole, 279. 



young of, 53. 

 Dulse, 143. 

 Dysteria, 171. 



E. 



Echinodermata, development of, 290. 

 Echinoderms, 181. 

 Egg, mulberry state of, 285. 

 of Infusoria, 31. 

 Laomedea, 33. 

 Rabbit, 32. 

 Sow, 32. 



place of origin of, variable, 52. 

 segmentation of, 284. 

 structure of, 81, 38, 36. 

 the, and the animal identical, 52. 

 is the first phase of the ani- 

 mal, 52. 

 Eggs, bipolar bodies, 40. 



floating in the air, 29. 

 Ehrenberg on Infusoria, 167. 

 Embryo, degree of dependence upon the 



parent, 53. 

 relation of, to external causes, 



53. 



to the parent, 63. 

 Embryonic disc, 304. 

 eggs, 40. 



forms. Von Baer on, 252. 

 state of animals, 40, 252. 



