402 



INDEX. 



148 ; of the Carboniferous, 186 ; of the 

 Permian, 198 ; of the Trias, 211 ; of the 

 Jurassic, 234-236 ; of the Cretaceous, 

 268-270 ; of the Eocene, 292. 



Lamna, 275, 312. 



Lamp-shells (see Brachiopoda). 



Land-tortoises, 313. 



Lauracece, 308. 



Laurentian period, 65; rocks of, 65, 66; 

 Lower Laurentian, 66 ; Upper Lau- 

 rentian, 66 ; areas occupied bjr Lau- 

 rentian rocks, 66 ; limestones of, 66, 

 6" ; iron-ores of, 68 ; phosphate of lime 

 of, 68 ; graphite of, 68 ; life of, 67-75. 



Leaf-beds of the Isle of Mull, 306. 



Leda, 292 ; trwieata, 338. 



Leguminogitei Marcouanus, 263. 



Lemming, 344, 345. 



Lepadidce, 267. 



Lepadocrinus Gebhardi, 106. 



Leperditia, 108; canadensis, 107. 



Lepidaster, 120. 



Lepidechmus, 178. 



Lepidesthes, 178. 



Lepidodendroids, 166, 167, 207. 



Lepidodendron, 118, 136, 166, 196; Stern- 

 bergi, 167. 



Lepidoptera, 311. 



Lepidosiren, 153. 



Lepidustem, 188. 



Lepidostrobus, 166. 



Lepidotus, 275. 



Leptcena, 109, 110, 125, 234; Liassica, 

 235; sericea, 110. 



Leptocaelia, 127 ; plano-convexa, 127. 



Lias, 226, 227, 229. 



Lichas, 108. 



Licrophycus Ottawaensis, 97. 



Lignitic Formation of North America, 

 288, 294. 



Lily-encrinite, 209, 210. 



Lima, 235. 



Lime, phosphate of, 30, 31. 



Limestone, 23-27 ; varieties of, 27-30 ; 

 origin of, 21; microscopical structure 

 of, 26; Crinoidal, 24; Forarniniferal, 

 24, 26; coralline, 24; magnesian, 27; 

 metamorphic, 27 ; oolitic, 28-30 ; piso- 

 litic, 29 ; bituminous, 36 ; Laurentian, 

 67. 



Limncea, 294 ; pyramidalis, 294. 



Limulus, 84, 124, 125, 179. 



Lingula, 87, 88, 110, 127, 147, 198 : Cred- 

 nen, 198. 



Lingula Flags, 77, 78, 79, 88. 



Lingulella, 87, 88 ; Davisii, 88 ; ferru- 

 ginea, 88. 



Linodendron, 262, 308 ; Meeki, 263. 



Lithostrotion, 173 ; irregulare, 174. 



Lituites, 130. 



Lizards (see Lacertilia). 



Llama, 354. 



Llanberis Slates, 79. 



Llandeilo rocks, 92, 94, 96. 



Llandovery rocks, 93; Lower, 93; Upper, 

 115. 



Lobsters, 180, 210, 233, 267. 



Loess, 339. 



London Clay, 287, 288. 



Longmynd rocks, 77-SO, 83. 



Lonsdakia, 173. 



Lophiodon, 316. 



Lophophijllum, 173. 



Lower Cambrian, 77-79 ; Chalk, 259 ; Cre- 

 taceous, 257, 258 ; Devonian, 134 ; 

 Eocene, 287, 288; Greensand, 257. 258; 

 Helderberg, 117, 118; Laurentian rocks, 

 66; Ludlow rock, 116; Miocene, 305; 

 Old Red Sandstone, 134 ; Oolites, 227, 

 229: Silurian period, 90-114; rocks of, 

 in Britain, 92-94; in North America, 

 94-96; life of, 97-114'. 



Loxonema, 186, 199, 213. 



Ludlow rocks, 116, 117. 



Lycopodiacece, 118, 136, 167. 



Lynton Group, 134. 



Lyrodesina, 111. 



Macaques, 323, 331. 



Machcer -acanthus major, 151, 155. 



Machairodus, 221, 249, 322, 331, 360; 

 cul/ridens, 331. 



Maclurea, 111; crenulata, 112. 



Macrocheilus, 186, 199, 213 



Macropetalichthya, 152; SuWvanti, 151. 



Macrotherium giganteum, 315. 



Macrurous Crustaceans, 180. 



Maclra, 292. 



Maestricht Chalk, 259, 279, 286. 



Magnesian Lifhestone, 27; nature and 

 structure of, 28 ; of the Permian series, 

 194, 196. 



Magnolia, 262. 290, 31ft. 



Mammalia, of the Trias, 223, 224 ; of the 

 Jurassic, 253, 254; of the Eocene, 

 299-305; of the Miocene, 313-323; of 

 the Pliocene, 327-331; of the Post- 

 Pliocene, 348-362. 



Mammoth, 339, 341, 344, 357-359. 



Man, remains of, in Post-Pliocene de- 

 posits, 341, 344. 



Manatee, 299. 



Mantellia, 230 ; megalophylla, 230. 



Maple, 290, 308, 310. 



Marble, 28; encrinital, 24; statuary, 27. 



Marcellus Shales, 135. 



Mariacrinua, 122. 



Marmots, 322. 



Marsupials, 299 ; of the Trias, 223 ; of the 

 Jurassic. 253, 254 ; of the Eocene, 299 ; 

 of the Miocene, 315 ; of the Post-Plio- 

 cene, 348, 319. 



Marniipwcrinus, 122. 



Marsupites, 266. 



Mastodon, 319, 321, 322; Americanus, 

 angustidens, 322; Arvenensis, 329; 

 longirostris, 322 ; Ohioticus, 357 ; Siva- 

 lensis, 321. 



Medina Sandstone, 116. 



Mcgalichthys, 188. 



Megalodon, 148. 



Megalomua, 128. 



Megalonyx, 351. 



Megalosaurus, 249, 278. 



Megatherium, 350, 351 ; Cuvieri, 350. 



Melania, 294. 



Melinites, 178. 



Menevian Group, 77-79. 



Menobranchus, 189. 



Meristella, 127; cylindrica, 127; inter- 

 media, 127 ; naviformti, 127. 



Mesopithecus, 323. 



Mesozoic Period, 44. 



Sfichelini-a, 142. 



Micraster, 266. 



Microlestes, 224 ; antiquus, 223. 



