INDEX. 



341 



Q. 



QUASI- VERTEBRAL theory of skull, 194. 



R. 



RABBIT of Porto Santo, 113, 137. 



Radial ossicle, 199. 



Rarefied air, effect on dogs, 111. 



Rattlesnake, 56. 



Red Bird of Paradise, 103. 



Relations, analogical, 178. 



Relations, homological, 177. 



Reptiles compared with birds, 79. 



Retina, 86. 



Retrieving, virtue a kind of, 213, 232. 



Reversion, cases of, 137. 



Rhea, 79. 



Ribs of Cetacea and Sirenia, 46. 



Ribs of flying-dragon, 73, 178. 



Richardson's figures of pigs, 112. 



Roger Bacon, 305. 



Rudimentary structures, 8, 116. 



S. 



SABRE-TOOTHED tiger, 125. 



St. Augustin, 20, 303, 305. 



St. Basil, 20. 



St. Hilaire, M., 202. 



St. Thomas Aquinas, 20, 285, 298, 303, 



304. 



Salamander, great, 193. 

 Salter, Mr., 140. 

 Sal via officinalis, 242. 

 Salvia verticillata, 242. 

 Scapula of birds and reptiles, 79. 

 Schreber, 15. 

 Sclerotic, 86. 

 Scorpion, sting of, 74. 

 Seals, 92. 

 Sea squirts, 92. 

 Seeds, dissemination of, 74. 

 Seeley, Mr., on pterodactyles, 80. 

 Segmentation of skull, 194. 

 Segmentation of spine, 183, 192. 

 Segments, similar, 181. 

 Self-existence, 290. 

 Semnopithecus, 157. 

 Sense, organ of, 57, 78,' 83, 86. 

 Sensitiveness of generative system, 



269. 



Sepia, 87. 



Serpents, poisonous, 55. 

 Sexual characters of apes, 55. 

 Sexual selection, 54. 



Sharks, 92. 



Shell-fish, beauty of, 61. 



Shells of oysters, 99, 110. 



Shielded grasshopper, 100. 



Silurian strata, 158, 160. 



Simultaneous modifications, 64. 



Sirenia, 47. 



Sir John Lubbock, 225, 291. 



Sir William Thomson, 153. 



Sitaris, 52. 



Six-shafted Bird of Paradise, 101. 



Skull bones, 173. 



Skull segments, 194. 



Sloth, windpipe of, 92. 



Smithfield, wife-selling in, 224. 



Snow, crystals of, 210. 



Sole, 41, 187. 



Solenodon, 168. 



Species, meaning of word, 2. 



Spelerpes, 186. 



Spencer, see Herbert Spencer. 



Spider orchid, 62. 



Spiders, flight of, 74. 



Spine of Glyptodon, 124. 



Spine, segmentation of, 193. 



Squalida3, 43. 



Squilla, 182. 



Sterility of hybrids, 139. 



Stings, 74. 



Straining action of baleen, 46. 



Struthious birds, 79, 171. 



Sturgeon, 193. 



Suarez, 21, 305. 



Substantial forms, 210, 213. 



Sufferings of beasts, 299. 



Supernatural action, 291. 



Supernatural action not to be looked 



for in nature, 17- 

 Supernumerary digits, 138, 202. 

 Syllis, 190, 241. 

 Symbolic conceptions, 288. 

 Symmetrical diseases, 205. 

 Syphilitic deposits, 205. 



T. 



TADPOLE'S beak, 92. 



Tsenia echinococcus, 191. 



Tails of butterflies, 94, 96. 



Tapir, 139, 151. 



Tarsal bones, 179. 



Teeth of Cetacea, 92. 



Teeth of Insectivora, 77. 



Teeth of kangaroo and Macroscelides, 



