OCR Text |
Show 100 INDEX. Odoardi, on the recent origin of the tertiary str·ata of Italy, I 9 ffiiningen, fossil reptile found at, 7 Older· Pliocene period-see Pliocene per ·iod, o/det· Olivet, volcanic cone of-( see frontispi~!ce,) 187 Olot, volcanic district of, 183 --its extent-see map, wood.cut No. 43, 184 -- number of volcanic cones in-(see frontispiece, 185) --geological structure of the district around, 185 -- age of the volcanos of, 191 --town of, destroyed by an earthquake in 1421, 191 -- country between Perpignan and, occasionally shakt>n by earthquakes, 191 Omalius d' Halloy, on the for·mer connexion of Auvergne and the Paris basin by lakes, 241 . Oolite, or jura limestone formation, 326 --converted into hypogene rock in the Alps, 371 Organic remains, controversy as to the real nature of, 3 -- theories to account for their occurrence in high mountains, 4 -- contemporaneous origin of rocks proved by, 39 --comparative value of different classes of, 46 Origin of the globe, no geelogical proofs of, 384 Orleanais, fossil remains of the, 219 Orthes, tertiary strata of, 207 Osseous breccias, in Sicilian caves, 139 -- in Australian caves, 143 -- now fo~ming in the Morea, ] 4-l Otranto, tert1ary strata of, 22 Ouse, t1·ansverse valley of the, 298, 299 -- has filled up an arm of the sea, 300 Outlying patches of tertiary strata on chalk hills, 283 Pachyder·mata, great abundance of this order in the Eocene period, 59 Pacific, lines of ancient sea. cliffs on the shores of the, 130 Palreotherium found in the fresh-water strata. of th.e l sleof Wight, 281, 317 Pala.gon~a, d1kes traversing peperino atsee dra?rams Nos. 6 and 7, 69 --section to Paterno from-s£e diagram No. 12,76 Palermo, caves containing osseous breccias near, 140 --. fossil shells from-see list Appendix II., p. 55, 56 Panella, in Ischia, ancient sea-bt>nch seen near, 127 Papandayang, subsidence of the volcanic cone of, 96 Parallel roads of Coquimbo, 131 --of Glen Roy, 131 Paris, comparison between the tertiary str·ata of, and those of England, 282 Paris basin, formations of the, 16 --organic remains of the, 16 -- all tertiary formations at first re-ferred to the age of tnose of the, 17 . --analogy of the deposits of cent1·al France to those of the, 241 --geographical connexion of Auvergne and the, 241 --subdivisions of strata in the, 242 -- diagrams showing the relation which the strata bear to each other-see woodcuts, Nos. 58 and 59, 243 -- superposition of different formations in the, 244 -- plastic clay and sands of the, 244 -- calcaire grossier, 245 -- calcaire siliceux described, 246 -- gypsum and marls of the, 246 --second or upper marine gi'Oup, 248 -- third fresh-water formation, 249 --age of the deposits of the, 20, 250 -- abundance of microscopic shells in the, 20, 250 -- bones of quadrupeds in gypsum, 251 -- alternation of strata with and without organic remains in the, 25-! -- number of living species in the fossil testacea of the, 55, 253 -- conclucling remarks on the tertiary strata of the, 254 -- fossil shells of the-see tables, Appendix I. -- number of living species in the fossil shells of the-Appendix I., p. 50 Parkinson, Mr., on the crag, 19, 156 Pa1·ma, sub-Apennine marls thinly laminated near, 158 -- these marls interstratified with lignite in the territory of, l 59 --silicified shells found in the mads near, 160 -- blue marl of, a fresh-water univalve filled with marine shells found in the, 163 -- river, brown clay deposited by the, 161 Paroxysmal elevations, theory of, 128 Partsch, M., on the tertiary strata of the basin of Vienna, 213 Paterno, section from, to Palagonia-see diagram, No. 12, 76 -- valleys excavated through blue mar at, 77 -- relative age of the basalts of, 82 Pauliac, limestone of, 208 Pegwell bay, recent deposits in, 182 INDEX. 101 Pentalica, great limestone of the Val di Noto seen in the valley of, 64 Pentlantl, Mr., on the bones of animals from Australian caves, 144 -- on the mammiferous remains of the Upper Val d'Arno, 220 Peperino, traversed by dikes near Patagonia- see diagrams, Nos. 6 and 7, 69 --dikes of, how formed, 70 --sections of calcareous g1·it and-see diagrams Nos. 9 and 10, 72 Peperinos, of the Val di Nolo, 71 --how formed, 71 Perpignan, the country between Olot and, occasionally shaken by earthq oakes, 191 -- fossil shells of-see Tables, Appendix I. Peru, proofs of successive elevation of the coast of, 130 Pewsey, Vale of, 308 · Phillips, Mr., his analysis of chalk flints, 238 Philosopher's Tower on Etna, 128 Phlegrrean Fields, minor cones of the, 125 Piana, conglomerate of, 211 Piazza, dip of tht> tertiary strata at, 74 Pit>dmont, tertiary strata of, 20, 2 l l -- their relative age-see diagram, No.4, 21 Pitchstone, a thin band of, formed at the contact of the dikes of Somma and intersected beds, 124 Placentia, character of the sediment transported by rivers in the territory of, 161 Plants, their fossilization partial, 31 __ fossil, importance ol~ in geology, 47 Plas Newydd, changes caused in sedi. mentary strata by a volcanic dike near, 368 Plr1stic clay and sand of the London basin, ~78 -- its thickness, composition, &c., 278 -- organic remains rare in the, 279 -- clay and sand of the Paris basin, 244 --alternates with calcaire grossier, 244 Pliny does not mention the Auvergne volcanos in his Natural History, 269 Pliocene period, newer, derivation of the term, 53 -- proportion of living specit>s in the fossil shells of the, 53 -- marine formations of the, 62 -- contortions in strata of the, in the Isle of Cyclops-see wood-cnt, No. 15,80 --strata of the, invaded by lava-see wood-cut No. 16, 81 -- subterranean rocks of fusion, formed during the, 107 --fresh-water formations of the, 137 Pliocene period, newe1·, osseous breccias and cave deposits of the Ia9 -- alluviums of the, l45 -- extinct animals in breccias of the 140 ' Pliocene period, older, proportion of living species in the fossil shells of the, 54 -- position of the beds referrible to this era-see ~iagrams Nos. 3 and 4, 20, 21 -- ma'!lm1ferous rem<lins of the, 59 -- terllary formations referrible to the 155 ' -- volcanic rocks of the, 183 -- elevation of land on the East coa~t of England since the commencement of the, 316 Pliocene period, fossil shells of the-see Table, Appendix I. -- general results derived from the fossil shells of the-Appendix I., p. 47 -- number of species of fossil shells common to different formations of theAppendix I., p. 47 --number of living species in the fossil shells of the-Appendix I., p. 47 -- number of species common to the Miocene and-Appendix I., p. 49 -- geographical distribution of the living species of the-Appendix: I., p.51 -- strata of Sicily, their clip and direction, 73 Pliocene strata of Sicily, origin of the, 103 -- changes of the surface during and since their emergence, 109 -- strata, newer, only visible in countries of earthquakes, 129 Plomb du Can tal, successh·e accumulation of the, 240 ....__ age of the ,·olcanic rocks of the, 260, 262 -- its ht>ight, form, structure, &c., 263 --fresh-water limestone covered by volcanic rocks on the northern side of the, 263 Plutonic rocks, 353 -- distinction betwet>n volcanic and, 359 -- their relative age, 364, 377 -- changes produced by, 370 --why those now visible are for the most part very ancient, 379 Podolia, tertiary formations of, 215 Poagibonsi, conglomerate of, 160 Po~t du Chateau, alternation of volcanic tuft' and fresh-water limestone at, 258 Portella di Calanna, furrows in the defile called, how formed, 147 Pratt, Mr., on the mammiferous remains of the Isle of Wight, 281 Pressure, effects of, on the consolidation of strata, 334 |