INDEX. 



Acadian Group, 79. 

 Acer, 308. 



Aceroularta, 119, 173. 

 Acidaspis, 123. 

 Acorn-shells, 267. 

 Acroculia, \->8. 



Acrodux, 214, 242, 275; nobllis, 242. 

 Acrotreta, 110 

 Acroura, 120. 

 Actinocrinus, 175. 

 , 108. 

 s, 348. 



Agnogtutt, 85-S7 



.4 ices malchia, 354. 



Alecto, 108. 



Alethopteris, 136, 165, 196. 



Algae (see Sea-weeds). 



Alligators, 218, 297. 



,4 tow*, 262. 



Ainblypterus, 188; macropterus, 188. 



Awbonychia, 111. 



Ammonites, 187, 212-214, 237-239. 272; 

 Huinphresianus, 238 ; bifrons, 238. 



^mwoniide, 239, 272, 285, 294. 



Amphibia, 189 ; of the Carboniferous, 

 189-191 ; of the Permian, 200 ; of the 

 Trias, 215-217; of the Jurassic, 242; of 

 the Miocene, 313. 



Amphicyon, 322. 



A mphilestes, 253. 



Amphispongia, 118. 



Amphiistegina, 311. 



Amphltherium, 253 255; Prevostii, 254. 



Amphitragulus, 317. 



.AmpferMS, 173; curalloides, 174. 



^4 mpyx, 108. 



Ananehy'es, 266 



AnchUherium, 3'U, 302. 



./I ncyliceras, 272, 273 ; Mather onianus, 

 273 



Ancyl ttherium Pen'eKei, 315. 



Andr.a-i Scheuch&ri, 313, 314. 



Ang'osperms, 261, 262. 



Animal Kingdom, divisions of, 375-378. 



^niiwpw*, 206. 



Annelida, of tlie Cambrian period, 82, 

 83; of the Lower Silurian, Iu7; of the 

 Upper Silurian, 122, 123 ; of the De- 

 vonian, 143, 144 ; of the Carboniferous, 

 178. 



Annularia, 137, 196, 207. 



Anomodontia, 220. 



Anoplutheridce, 302. 



Anoplotheriuni; 302, 303 ; commMJie. 303. 



Ant-eaters, 299, 315, 349, 350,353. 



Antelopes, 317. 



Anthracasaurus Russslli, 190. 



Anthmpalcemon gracilis, 180. 



An'.ilouapra, 318. 



Antttope quadricnrnis, 318. 



Antwerp Owg, 325. 



Apes. 32.5. 



Apiucrinus, 231. 



Apteryx, 346, 348. 



Aqueous jocks, 15. 



Arnchnida of the Coal-measures, 181. 



Aralo-Ciispiaii Beds, 326. 



Araucaria, 2'i2. 



Araucariuxylon, 170. 



^4rca, 198 ; antiqua, 199. 



Archceiic daris, 178. 



Archceocyathux, 82. 



Archceopteryx, 252, 281; macrura, 252, 



253. 



ArchcKospJiairince, 75 

 Archimedes, 184; Wortheni, 183. 

 Archiulus, 1S2. 



Arctic regions, Miocene flora of, 310. 

 Arctucyun, 3"4. 

 Arenaceous rocks, 20. 

 Arenicolites, 83 ; didyrnus, 88. 

 Arenig rocks, 92, 94. 

 Argillaceous rocks. 20. 

 Armadillos, 2'J9, 351, 353. 

 Arliiidactyle Ungulates, 300, 317. 

 Atsaphuis, 108 ; tyrannus, 107, 108. 

 ^Iscocerax, 130. 

 Asiridella, 76. 

 Aspidura loricata, 210. 

 Astarte bnrealif, 338. 

 AsteraphyUi'es, 137, 196. 

 ^Isteros'ews, 152. 

 Asirceidm 231. 

 As'rcenspnngia, 118, 139. 

 Astylospongia, 98 ; prcemsirsa, 98. 

 Athyris, 11 -. 127, 147, 198 ; aubtilita, 185. 

 Atlantic Ooze, 2^', 23. 

 Atrj/pa, 127; congesta. 127; Jiemisphce- 



r'ica, 127 ; reticularig, 147, 148. 

 Auger-shells, 293. 

 Aurochs. 356. 

 Aves (see Birds). 



