466 



INDEX. 



Eelations of the types of dentition to 



types of foot, 260. 

 Repetitive addition, 180. 

 "Report on Geological Survey of Mon- 

 tana, Wyoming, etc.," 246. 

 " Report United States Exploring Survey 



W. lOOth Meridian," 224. 

 Reptilian line, the, 333, 

 Respiratory and circulatory system of 



vertebrates. 196. 

 Retardation, vi, 13, 142, 182, 281, 385. 

 Retardation and acceleration, 11, 43, 15, 



115, 226. 

 Retrograde metamorphosis of energy, 



427. 

 " Review of Birds of North America," 55. 

 Review of modern doctrine of evolution, 



xi, 215. 

 Rhachitomi, 331, 332. 

 Rhinocerus, 247. 

 Rhynchocephalia, 334, 336. 

 Riickhard, Rabl, 319. 

 Roccus lineatus, 213. 

 Rodentia, 180, 342-4, 346, 375, 

 Rotifera, 315. 

 Ruminantia, 223, 247, 375. 

 Ryder, J. A., ix, 368, 409, 423. 



Sacculina, 401. 

 Salamandra atra, 87. 



maculosa, 87. 

 Salmo, 4. 

 Salticus, 212. 

 Saturniidae, 316. 

 Sauropterygia, 334, 336. 

 ScaridsD, 331. . 

 Schlosser, 370. 

 Schopenhauer, 453. 

 Schopfungsgeschichte, xiii. 

 Schreiber, 87. 

 Scincidae, 337. 

 Sclater and Salvin, 118. 

 Scolecophidia, 340. 

 Scombridge, 331. 

 Scops asio, 4. 

 Seeley, H. G., 335, 340. 

 Segment-repetition, 182. 

 fSelenodonts, 247. 



Serranidae, 331. 



Siluridae, 327. 



Simia satyrus, 283. 



Simiidae, 180. 



Siredon, 333. 



Sirenia, 342, 347, 349. 



Smilodoti neogceus, 367. 



Smith, Aubrey, 86. 



Smyth, Brough, 291. 



Spelerpes, 4. 



Spencer, Herbert, viii, ix, xi, 2, 15, 413, 



444, 445, 448. 

 Spinoza, 90, 456. 



Spiritual or moral development, 157. 

 Spizclla pusilla, 16. 



socialis, 16. 

 Stegocephali, 331, 332. 

 Stegophilus, 327. 

 Steindachner, 86. 

 St.-Hilaire, 91, 146. 

 Streptostylica, 334. 

 Structural evidence of evolution, the, 



241. 

 Stypolophus, 246. 



whitice, 360. 

 Subordinate types of bunodonts, the, 



244. 

 Subordinate types of lophodonts, the, 



246. 

 Successional relation, 7. 

 Survival of the fittest, 15. 

 Swainson, 96. 



Symborodonts, 248, 250, 257. 

 Synopsis of the vertebrata of the eocene 



of New Mexico, 245. 

 Synthesis of repetition, 187. 



Taenia, 184. 

 Taeniodonta, 343, 349. 

 Tachyglossidae, 346. 

 Talpa, 360. 

 Tapirodonts, 247, 255. 

 Tapirus, 247. 

 Taxeopoda, 342, 347. 

 Taxodium distichum, 86. 

 TeidaD, 337. 

 Teleology, 7, 16. 

 Teleostomi, 318, 324-326, 



