411 



Rhinoceros, Fossil, 300. 

 Rocks, Colours of, 110. 

 Rotation of the Earth, its Gradual 

 Diminution, 165. 



Salter on Fossil Crustacea, 155. 

 Sedgwick on Cambrian, 56, 75. 

 Seeley on Pterodactyls, 206. 

 Shrinkage-cracks, 47. 

 Sigillaria, 104, 124. 

 Silurian Ages, 56 ; Cephalopods 



of the, 69 ; Corals of the, 63 ; 



Crinoids of the 68 ; Crustaceans 



of the, 71 ; Fishes of the, 74 ; 



Plants of the, 76. 

 Siluro-Cambrian, use of the term, 



56. 



Slaty Structure, 48. 

 Solidity of the Earth, 6. 

 Somme, R., Gravels of, 292. 

 Species, Nature of the, 327 ; how 



Created, 352. 



Spencer, his Exposition of Evo- 

 lution, 321, 331. 

 Spiritual Nature of Man, 384, 370, 



387. 

 Spore-cases in Coals and Shales, 



106. 



Stalagmite of Caves, 305. 

 Striated Rock-surfaces, 269. 

 Stumps, Fossil of Carboniferous, 



140. 

 Synthetic Types, 181. 



Table of Devonian Rocks, 85 ; of 

 Palaeozoic Ages, 187 ; of Mesozoic 

 Ages, 234; of Neozoic Ages, 

 298 ; of Post-pliocene, 276. 



Temperature of Interior of the 



Earth, 4. 

 Tertiary Period, 236; Mammals 



of, 247, 250, 256 ; classification 



of its Rocks, 238. 

 Thomson, Sir W., on Solidity of 



the Earth, 6. 



Time, Geological Divisions of, 175. 

 Tiniere, Cone of, 293. 

 Trenton Limestone, 59, 63. 

 Trias,Divisions of, 189 ; Footprints 



in the, 203. 



Trilobites,43, 94, 154; Feet of, 43. 

 Turtles of Mesozoic, 218. 

 Tylor on Pluvial Period, 287. 

 Tyndall on Carbonic Acid in 



Atmosphere, 123. 



Uniformitarianism in Geology, 3. 

 Utica Shale, 60. 



Volcanic Action, 7 ; of Cambrian 

 Age, 36 ; of Silurian Age, 62 ; of 

 Devonian Age, 81, 83. 



Von Dechen on Reptiles of Car- 

 boniferous, 143. 145. 



Von Meyer on Dinosaurs, 202. 



Walclria, 173. 



Wallace,his views onlnapplicability 

 of Natural Selection to Man, 368. 

 Wealden, 191. 

 Wenlock Group, 62. 

 Williamsonia gigas, 200. 

 Williamson on Calamites, 131. 

 Woodward on Pterygotus, 93. 



Zaphrentis, 92. 



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