INDEX 
iEolian Deposits, 92-93. 
,, Origin of Sandstone, 93- 
115. 
Acid Rocks, 255. 
Agate, 52. 
Age of the Earth, 347. 
Alethopteris , 85, 172-173, 356. 
Alkalies, 123, 198. 
Alluvial deposits, 82, 92, 94. 
,, flats, 90, 95. 
,, Plains of Interior, 83, 
90. 
Alluvium, 94. 
Altered Sandstone near Sydney, 
79, 265. 
Ammonites , 85. 
Amphibia, 129, 138. 
Andesite, 79, 255. 
,, at Orange, 336. 
,, lavas, 205. 
Angle of dip, 217. 
,, inclination, 217. 
Anthracite, 80. 
,, carbon in, 194. 
Annul aria, 85, 172. 
Anticline, 245. 
Aphanaia , 296. 
Aphnelepis , 85. 
Aptornis, 84. 
Acpieous Rocks, divisions of, 72, 
80. 
,, ,, formation of, 72, 
75-76. 
,, ,, uplifting of, 34- 
36. 
,, Erosion, 301. 
,, Rocks, 83. 
A rchtvocalamites, 177. 
Artesian water-bearing strata, 
83, 90, 163. 
Archxopteris , 85, 215. 
Arenaceous rocks, 80. 
Argillaceous strata, 80. 
Arumpo, Marine beds at, 83. 
Asaphus , 85. 
Ash (see Volcanic Ash) 
Asia in Triassic Times, 190. 
,, Nummulitic limestone ol, 
224. 
Asterolepis, 85. 
Atrypa , 85, 213. 
Aturia , 84. 
Augite, 54, 245, 283, 292. 
,, a constituent of basalt., 
54. 
Augite-porphyrite, 245. 
Authors, list of, 362. 
Auvergne, Granites of, 288. 
Avicula , 85. 
Auicidopecten , 85, 203, 355. 
Baculites , 85. 
Baiera, 85. 
Bald Rills, 335-336. 
,, ,, Basalt at, 252,271,286. 
Ballimore, Age of Coal at, 176. 
Bands of Clay Ironstone, 1 10, 
333. 
Bangor Roofing Slate, 218. 
Barite, 56, 344. 
Barrier Reef, Great, 223, 233. 
Basalt, 54, 64, 66, 71. 76, 78, 83, 
89, 112, 185,230,246,252, 
255-266, 271-274, 276-284, 
289, 290. 
Basalt at Kiama, 341. 
,, at Orange, 336. 
,, at Pennant Hills, 341. 
„ Chemical Composition of, 
252, 278. 
,, Decomposition of, 252, 
256-257. 
