Index. 
389 
Reptiles, Age of, 101, 126, 129, 
130. 
Road-Metal, 264. 
Rock Salt, 78, 80. 
„ Shelters, 230, 231. 
,, Slice for the Microscope, 
270. 
Rocks, Arenaceous, 80. 
, , Argillaceous, 80. 
,, Calcareous, 80. 
,, Carbonaceous, 80. 
,, Crystalline, 124. 
,, Definition of, 51. 
,, Districts in which they 
occur, 78, 79. 
,, Division of, 71, 77, 78. 
,, formed by Chemical 
Action, 72. 
,, formed by Mechanical 
Action, 72. 
,, formed organically, 75. 
, , H ow they differ, 58. 
,, Siliceous, 80. 
,, the Study of, 28. 
Rhamphorhynchus , 151. 
Rhyolite, 255, 354. 
Rientis, Collection made by, 334. 
Riley -st., Dyke at, 261. 
Ripple-marks, 183, 296. 
Rivers, Work of, 309, 310, 312. 
Rodd Island, Dyke at, 339. 
Rookwood, 324, 344. 
liotella, 84. 
Rugosa , 178. 
Running Water, Work of, 293. 
Rutacece , 158. 
Rydal, 333, 335. 
,, Granite at, 286. 
,, Rocks at, 91, 211, 213- 
215. 
Ryde, Dyke near, 85, 212, 213. 
215, 354. 
Saddleback Mountain, 182, 327. 
Sageuopteris, 85. 
Salisbury , 175. 
Sal. term, 85. 
Salt in Solution, 125. 
Sand, 80, 113, 116, 117, 125. 
Sand-dunes, 113. 
Sandstone, 78-80, 82-83, 89, 94, 
101, 103, 106-110, 
113, 212, 213, 241, 
244, 253, 258, 265, 
299, 301-302, 304. 
„ baked, 65, 79, 127. 
,, characters of, 58. 
,, definitions of, 61. 
,, Hawkesbury (see 
Hawkesbury Sand- 
stone). 
Sandstones, Devonian, 82, 83, 
89, 91, 204. 
Sandstone for roads, 343. 
,, New Red, 101, 129. 
,, Old Red, 101. 
,, Origin of, 110, 113, 
115, 154. 
,, Weathering of, 271. 
Sanguinolites , 85, 176. 
Saunders’ Quarry, Sydney, 106. 
Schists, 78, 79. 
Sc.hizoneura, 85, 170, 171, 172, 
175, 177. 
Sea, Encroachment of, 29. 
Sea-lilies, 69, 76, 228. 229. 
Section at Capertee, 179. 
,, at Bundanoon, 179. 
,, of Hawkesbury Sand- 
stones, 181. 
,, of Narrabeen Shales, 181. 
,, of Permo-Carboniferous, 
181. 
,, Mountains to Sydney, 
124. 
Serpentine, 79, 285, 336. 
Shale, 72, 78-80, 83, 90, 101, 104, 
108, 109, 110, 113-116, 118, 
126. 167, 241, 242, 262, 297. 
Shales, Carboniferous, 114, 159, 
167, 175. 
,, Chocolate (see chocolate 
shales). 
,, Wianamatta, 98, 104, 
108, 109, 113. 
Shark, Port Jackson, 102. 
Shore Deposits, 215. 
Sigilaria , 85. 
Silica, 93, 255, 278. 
Silicified Wood, 42, 43, 45. 
