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Show 102 INDEX. Prevost, M. Constant, on the tertiary strata of Vienna, 21, 212 --tabular view of his arrangement of the strata of the Paris basin-see woodcut No. 59, 243 --on the alternation of the calcaire grassier, and siliceous limestone, 246, 248 --on the manner in which the mammiferous remains may have been preserved in the Paris gypsum, 252 -- on the alternation of strata with and without organic remains, 254 Primary, on the rocks usually termed, 10, 352 -- their relation to volcanic and sedimentary formations, 352 --divisible into two groups, the strati-fied and unstratified, 353 --on the stratified rocks called, 12, 365 -- the term why faulty, 374 -- strata, how far entitled to the appel-lation, 377 Primitive, term now abandoned, 13 Primosole, termination of the Val di Noto, limestone at, 75 -- view of Etna from-see diagram No. 11, 75 Procida, island of, would resemble Ischia i r raised, 127 Pulo Nias, fossil shells of recent species found in the island of, 134 Pulvermaar, description of the, 197 Punlo del Nasone on Somma, dikes or veins of lava seen at-see wood-cut No. 25, 122 Punto di Guimento, veins of lava at-see wood-cut No. 20, 91 Purac~, extinct volcano of, 252 Pusanibio river, sulphuric and muriatic acids, and oxide of iron in the waters of the, 252 Puy Arzet, chalk with conformable beds of tuff in the hill called, 207 Puy de Come, ravine excavated through the lava of the, 264 Puy de J ussat, quartzose grits of, 229 Puy de Marmont, alternation of volcanic tuff and fresh-water marl in the, 258 Puy de Pariou, 268 Puy Rouge, ravine cut through the lava of the, 265 Puy de Tartaret, 264 Puy en Velay, bones of extinct quadrupeds in alluvium under lava near, 219 -- fresh-water formation of, 235 Puzzuoli, inland cliff near, will be destroyed, 112 -- no great wave caused by the rise of the coast ne:~,r, in 1538, 128 Pyrenees, tertiary strata. at the eastern extremity of the, 170 Pyrenees, tertiary formations between the basin of the Gironde and the, 206 --their relative age, 341 -- tertiary strata. abutting against verti-cal mica-schist at the eastern end of the, 348 -- lamination of clay-slate in the-see wood-cut No. 891 366 Quartz, compact, whence derived, 373 Quorra, or Niger, delta of the, 329 Radicofani, sub-Apennine marls cappeu by basalt at, 159 -- age of the volcanic rocks of, 183 Radusa, fossil fish found in great abundance at, 67 Ramond, M., on alluviums of Auvergne 267 ' Ramsgate, recent deposits in the cliffs near, 182 Ravines excavated through the lavas of Auvergne, 264, 265 Recent formations, description of, 52 -- form a common point of departure iu alJ countries, 58 -- why first considered, 62 Recent and T~rtiary formations, synaptical table of, 61 Red marl and sandstone of Auvergne like 'new red sandstone,' 229, 333 Red marl, supposed universality of, 333 : Red Sea, and Mediterranean, distinct assemblages of species found in the, 41, 205 -- tertiary strata found on its western bot·ders, 135 -- list of fossil shells from-see Appen-dix II., 57 Rennes, tertiary strata near, 276 Rhine, lower, volcanos of the, 193 --map of the volcanic district of the, 19! -- age of the volcanic rocks of the, un-certain, 199 --origin of the trass of the, 197 -- ancient alluviums of the, 200 Rhone, delta of, in lake of Geneva, 27 -- shells drifted from the Alps to the Mediterranean by the, 48 Riccioli, Signior, tusk of the mammoth from the Roman traverlin shown to the author by, 138 Rimao, valley of, lines of ancient sea-cliffs in, 130 Ripple marks formed by the wind on the dunes near Calais-see wood-cut No. 36, 176 Risso, M., on the fossil shells of Groseil, near Nice, 135 -- on the fossil shells of St. Madeleine, near Nice, 168 Rivers, difference in the sediment of, 40 INDEX. 103 Robert, M., on extinct quadrupeds of Gussac, 219 Rocca di Ferro, shells in the tuffs of, 79 Hochester, indentations in the chalk filled with sand, &c., near, 282 Rocks, distinction between sedimentary and volcanic, 10, 352 -- primary, 10 -- origin of the primary, 11, 363 -- distinction between primary, second-ary and tertiary, 10 -- persistency of mineral character, why apparently greatest in the older, 331 --older, why most consolidated, 334 -- older, why most disturbed, 335 -- secondary volcanic, of many different ages, 335 -- relative age of, how determined, 35 -- proofs of, by superposition, 35 -- proofs by included fragments of older rocks, 36 -- proofs of their contemporaneous ori-gin derived from mineral characters, 37 -- proofs from organic remains, 39 --volcanic of the Val di N oto, 63, 67 -- grooved surface of, 1-17 -- tmnsportation of, by ice, 149 -- identity of their mineral composition no proof of contemporaneous origin, 161 Roderberg, crater of the, described, 198 Rume, travertins of, 138 -- hills of, capped ,by calcareous tufa, 138 Ronca, fossil shells found at-see Table, Appendix I. Royat, ruins of Roman bridges and baths at, prove that no great changes have taken place since their erection, 269 Rozet, M., on the loess of the valley of the Rhine, 151 Runton, folding of the crag strata in the cliffs near-see wood-cut No. 38, 178 St. Christopher's, alternations of coral and volcanic substances in, 133 St. Eustatia, tertiary formations in, 133 St. Hospice, tertiary strata in the peninsula of, 135 St. Lawrence, Gulf of, changes which would result in, on the filling up of the Canadian lakes, 28 St. Madeleine, near Nice, shells abundant in the loamy strat<l of, 168 St. Michael's Mount, Cornwall, 371 St. Peter's Mount, Maestricht, fossils of, 325 St. Romain, gypsum worked at, 233 St. Vincents, active volcanos in, 133 Salisbury Craig, altered strata in, 369 San Ciro, cave of, breccia containing bone of extinct quadrupeds in, 141 San Ciro, position of the ca\"e of,-see diagram No. 27, 141 San Feliu de Paller61s, deep ravine cut through lava near the town of, 189 San Quirico, hills of, their composition 1~ ' Sand and conglomerate of the sub-Apennine strata described, 159 Santa Croce, Cape of, limestone resting on lava at, 68 Santa Madalena, section at the bridge of 186 ' Santa Margarita, size of the volcanic crater of, 187 Sardinian volcanos, their aae uncertain 193 ° ' -- rest ou a tertiary formation, 193 Sasso, Dr., on the tertiary strata of Genua, 166 --on the fossil shells of Albenga, 167 Saucats, fresh-water limestone of, 207 Savona, tertiary strata of-see wood-cut No. 55, 166, 222 Sciacca, volcanic island of, 69, 71 Scoresby, Capt., on the transportation of rocks by icebergs, 150 Scotland, parallel grooves formed in the beds of torrents in, 147 -- granite veins of-see wood-cuts Nos. 85 and 86, 354 Scrope, Mr. G. P., on the volcanic district of Naples, 125 -- on the extinct volcanos of the Rhine, 197, 201 -- on the hill of Gergovia, 258 -- on Mont Dor, 261 -- on the excavation of lava by the river Sionle, 265 -- on alluviums under lava at different elevations in Auvergne, 267 Sea-cliffs, successive elevations proved by -see wood-cut No. 24, 111 -- manuer in which the sea destroys successive ranges of, 111, 292 -- distinct ranges of ancient, in the Morea, 113 -- found elevated to great heights in Peru, 130 Seaford, waste of the chalk cliffs at, 311 Secondary rocks, 14 -- of the Weald valley divisibl( into fhe groups, 286 -- their rise and degradation gradual, 308 -- enumeration of the principal groups of, 324 -- no species common to the tertiary and, 327 -- circumstances under which they originated, 23, 329 -- why more consolidated, 334 -- why more disturbed, 335 |
