OCR Text |
Show 96 INDEX. Jobert, M., ·on the different ages of Auveq~ ne alluviums, 267 J orullo, time for which the lava of, retained its heat, 363 Lava, columnar, stratified marl re~tln" on in the Isle of Cyclops-see wood-cu~ No. 14, 79 Jura, erratic blocks of the, 148 --minerals in cavities of, 81 -- veins of, on Etna, 91 Kaiserstuhl, volcanic hills in the plains of the Rhine, 152 --great length of time which it requires to cool, 363 Lava streams solid externally while in mo. -- covered nearly to their summits with tion, 86 loess, 152 Katavothrons of the plain ofTripolitza now filling up with osseous breccias, 144 Kater, Capt., on recent deposits near Ramsgate, 182 Keferstein, M., his objections to M. de Beaumont's theory, 347 Kingsclere, valley of, ground plan of the -see wood-cut No. 78, 305 -- section acrosi the, from North to South-see wood-cut No. 79, 305 - section of the, with the heights on a true scale-see wood-cut No. 80, 306 -- anticlinal axis of the, 306 -- proofs of denudation in the, 307 Killas of Cornwall, 370 Laach, lake-crater of, 197 Lacustrine deposits overlying the cragsee diagram No. 30, 173 Lake Aidat, formed by the damming up of a river by lava, 269 Lake-craters of the Eifel-see \Yood-cuts Nos. 49 and 50, 195, 196 - how formed, 196 Lakes, arrangement of deposits in, 8 Lake Superior, recent deposits in, analogous to those of the Eocene lakes in Anvergne, 230 -- nature of the recent deposits in, 33,1 --the bursting of its barrier would cause an extensive deluge, 270 Lamarck, his list of the fossil shells of the Paris basin, 156 La Motta, valleys excavated through blue marl capped with columnar basalt a:, 77 -- volcanic conglomerate of-see dia. gram No. 13, 77 --relative age of the basalts of, 82 Lancashire, tertiary strata of, 135 Land, elevation of, caused by subterranean lava, 105 Land-shells drifted from the Alps into the Mediterranean, 48 Landers, on the delta of the Niger, 330 Landes, tertiary strata of the, 206 La Roche, section of the hill of, 229 Las Planas, lava current of, 189 La Trinita, near Nice, fossil shells of 168 Lauder, Sir T. D., on the parallel ro~ds of Glen Roy, 131 Lava, a bed of oysters between two currents of, at Vizzini, 73 Lavas of the Cyclopian isles not currents from Etna, 81 Lavas and breccias of the Val del Bove, 93 Lavas excavated by rivers in Catalonia, 186, 189 Lavas and alluviums of different ages in Auvergne-see wood-cut No. 61, 266 La Vissiere, fresh-water limestone coverel! by volcanic rocks at, 263 -- faults in the limestone at, 263 Leeward Islands, geology of the, 132 Le Gt·and d'Aussi, M., on alluviums under lava in Auvergne, 267 Leith Hill, height of, 293 Lentini, volcanic pebbles covered with serpulm in the limestone near, 73 -- dip of the strata at, 74 --valleys near, their origin, 111 Leonhard, M., on the loess of the valley of the Rhine, 151 -- on the volcanic district of the Lower Rhine, 201 - on granites of different ages near Heidelberg, 357 1 Lewes, fissures in the chalk filled with sand near, 283 - view of the ravine called the Coomb near-see wood-cut No. 751 301 --fault in the cliff-hills near-see wood· cut No. 76,.301 Leybros, fresh--water limestone of, 237 Lias, strata of the, 326 -- strata hetween the ·Carboniferous group and the, 326 ' -- converted into flinty slate by trap dike in Antrim, 370 -- altered in the Alps, 372 -- altered in Hebrides, 378 Licodia, relative age of the basalts of, 82 Lignite interstratified with the sub-Apen-nine marls, 159 Lima, valley of, proofs of the successive rise of the, 130 Limagne d' Auvergne, lacustrine deposits and volcanic rocks of the-see map, wood-cut No. 56, 226 Limestone formation of the Val di Noto described-see diagram No. 5, 64 -- its organic remains, 65 Limestone, resting on lava at. Capo Santa Croce, 68 Lithological character of the sub-Apen· nine beds, 1571 162 INDEX. 97 Lockart, M., on the fossil remains of the Orleanais, 219 Loess of the valley of the Rhine, 151 --mineral, composition of the, 151 --its thickness and origin, 152 --gravel, &c. alternating with, 153 -- list of shells from the-see Appendix II., 58 , Loire, tertiary strata of the basin of the 20 , -- relative age of the strata of the-see diagram No.3, 20 -- ' faluns' of the, 203 London basin, tertiary deposits of the, 18, 277 -- on the former continuity of the Hampshire and, 283 -- fossil shells of the-see Tables, Appendix J. -- proportion of living species in the fossil shells of the-Appendix I., 50 London clay, its composition, thicknes~, &r., 279 -- septaria of the, 27!) -- the fossil shells identifiable with tho11e of the Paris basin, 280 --organic remains of the, 280 Lower green-sand described, 286 Lower Rhine, see Ithine. Lucina diva1·icata, wide geographical range of the, 254 Luy, section of tertiary strata in the valley of the-see diagram No. 51, 207 Maars, or lake-craters of the Eifel-see wood-cuts Nos. 49 and 50, 195, 196 -- how formed, 196 Macculloch, Dr., on the parallel roads of Glen Roy, 131 -- sub-Apennine strata termed marine alluvia by, 157 -- on the granite veins of Cape Wrath, in Scotland, 354 -- on the junction of granite and lime-stone in Glen Tilt, 356 -- on the granitic rocks of Shetland, 357 -- on the granite uf Sky, 3~8 -- on the trap rocks of Scotland, 360 -- on the granite of Aberdeenshire, 361 -- on the passage of gneiss into granite, 372 Macigno of the Italians the greywacke of the Germans, 162 Maclure, Dr., on the geology of the Leeward Islands, 132 -- on the volcanic district of Olot in Catalonia, 184 -- his observations preceded by those of Don Bolos, 193 Madeira, fossil shell:s of recent species brought from, 134 VoL, III. Madeir~,- vertical_ dikes of compact lava seen 1n1 134 -- violently shaken by earthquakes during t.he last century, 134 1\Iaestncht beds, fossilli of the, 324 -- chasm between the Eocene and 325 , -- number of fossil shells common to the chalk and, 325 -- number common to the upper green· sand and, 325 Magnan, river, 167 --section from Monte Calvo to the sea by the valley of-sec diaaram, No. 29, 167 I> Malaga, tertiary strata of, 170 Mammalia, fossil, importance of the re. mains of, 47 -- duration of species in, more limited than in testacea, 140 -- shells of living species found with extinct, 140 Mammiferous remains of the successive tertiary eras, 59 ' Mammoth, tusk of the, found in calcareous tufa near Rome, 139 Man, remains of, now becoming imbedded in osseous breccias in the Morea, 144 Mantell, Mr., on the fossil shells of the crag, 171 --on deposits containing rPcent shells in the cliffs ncar Brighton, 182 ---on tertiary outliers on the chalk, 283 --on the secondary rocks of the Weald valley, 286 -- his section of the \'alley of the Weald, with the heights on a true scale-see wood-cut No. 64, 288 -- his section from the North escarpment of the South Downs to Barcombe -see wood-cut No. 71, 296 -- on the absence of chalk detritus on the central ridge of the Weald, 296 -- his section of n fault in the cliff-hills near Lewes-see wood-cut No. 76, 301 -- his discovery of the Mososaurus of Maestricht in the English chalk, 325 Map of the volcanic district of Catalonia -see wood-cut, No. 43, 184 -- of the \·olcanic region of the Eifel-see wood-cut No. 48, 194 -- of Auvcrgne, showing its geographical connexion with the Paris basin-see wood-cut No. 56, 226 Marculot, ft·esh-water limestone of, 232 Mardolce, grotto of, bones of extinct quadrupeds found in the, 140 -- pierced in the inter·ior by boring testacea, 141 --breccia in, how formed, 141 fl |