INDEX. 



391 



36. Cilia of, 34. Ivocomotion in, 35. 



Muscular system, 34. Nervous system 



in, 35. Shells of, 34. Teeth of, 35. 



Testis, 37. Vascular system, 36. 



Vesiculffi seminales, 37. Wheels of, 



34. 

 Rotarion of embryo in ovo, 289. 311. 

 Rudistes, 291. 

 Rudolphi, 42, 55. 



Salivary glands in i 



Cephalopods, 323. 



Cirripeds, 158. 



Echinoderms, 122. 



Entozoa, 70. 



Gasteropods, 298. 



Insects, 220. 



Pteropods, 292. 

 Salpa, 276. 

 Sarcoptes Galei, 252. 

 Sars, M., 111. 

 Savigny, 275. 

 Scaphite, 332. 

 Schultze, Prof. His experiment on 



spontaneous generation, 32. 

 Scorpion, 260. 264. 

 Sea-anemone, 87. 

 Sea-grapes, 360. 

 Sepia, 349. 

 Sertularia, 86. 

 Sharpey, Prof, 116. 

 Shell of Brachiopoda, 277. 



Cephalopoda, 328. 341. 



Gasteropoda, 295. 



Lamellibranchiata, 286. 



Pteropoda, 291. 



Absorption of, 296. 

 Ship-borer, 287. 

 Siebold, Prof, 76. 109. 285. 

 Siliceous deposits of Infusoria, 40. 43. 

 Sinistral shells, 295. 

 Siphoniferous shell, formation of, 329. 



Its function, 330. 

 Sipunculus, 128. 

 Skeleton, external, in 



Arachnida, 251. 



Crustacea, 163. 



Echinoderma, 114. 117. 



Insecta, 193. 

 Slug, 10. 

 Scemmcring, 54. 

 Spallanzani, 39. 

 Spermatophora, 358. 

 Spermatozoa of 



Acaleph.-c, 108. 



Anellida, 146. 



Cephalopoda, 358. 



Echinoderma, 135. 



Lamellibranchiata, 288. 



Nematoidea, 73. 



Polypes, 99. 



Sphinx Ligustri, 242. 



Spiders, loves of, 262. Webs of, 262. 



Spines of Echinus, 117. 



Spiroptera Hominis, 65. 



Spirula, 314. 341, 



Spontaneous fission, 23. 111. 144. 



Squilla, 169. 



Star-fish, 113. 



Stomapoda, 177. 



Stone-lilies, 114. 



Stokes, C. Esq., 331. 341. 



Strongylus Gygas, 65. 



Stutchbury, Sam., Esq., 91. 



Sub-kingdoms of Animals, 12. 



Swammerdam, 245. 



Swan, Jos. Esq., 170. 



Tape-worms, geographical distribution 



of, 48. 50. 54. 

 Taenia Solium, 48. 

 Teeth of 



Echinus, 121. 



Leech, 133. 



Nereids 135. 

 Tenacity of life in 



Entozoa, 79. 



Infusoria, 39. 

 Tentacula of 



Hydra, 83. 



Nautilus, 317. 319. 

 Terebratula, 277. 

 Teredo, 287. 

 Tetrabranchiata, 315. 

 Thompson, Mr. J. V., 129. 160. 

 Tiedemann, Prof, 116. 

 Tongue of 



Cephalopods, 353 



Limpet, 298. 



Nautilus, 323. 



Whelk, 298. 

 Torpidity, 39. 

 Touch, organs of, 



Arachnida, 257. 



Cephalopods, 322. 351. 



Crustacea, 173. 



Gasteropods, 306. 



Insecta, 210. 

 Tracheliastes, 151. 

 Transition from Radiata to Mollusca, 



269. 

 Trematoda, 35. 60. 

 Trichina si)iralis, 62. 

 Trichocephalus dispar, 65. 

 Trilobite, 165. 

 Trophi, 215. 

 Tunicata, 267. 

 Turrilite, 332. 



Urinary organs, 221. 258. 284. 302. 

 325. 



