OCR Text |
Show 98 . INDEX. Marienforst, blocks of quartz containing casts of fresh-water shells found near, 199 Marine alluviums, 145 Marine test~tcea, wide range of, 44, 48 Marls, sub-Apennine, localities of the, 158, 159 --sometimes thinly laminated, 158 -- interstratified with lignite and gyp-sum, 159 --capped by basalt at some places, 159 Martin, Mr., on the Valley of the Weald, 293 --on the transverse valleys of the North and South Downs, 299 --his supposed section of a trans· verse valley-see wood-cut No.7 4, 300 -- his estimate of the thickness of strata removed from the summit of the Forest ridge, 313 Maritime Alps, tertiary strata at the base of the, 164 Marsupial animals, their remains found in b1·eccias in Australian caves, 143 Mascalucia, subsidence on Etna near the town of, 96 Medesano, lignite in the sub-Apennine marls at, 159 Mediterranean, organic remains of the, 40 -- dist inct from those of the Hed Sea, 41,205 --shells drifted from the Alps into the, 48 Medway, transverse valley of the, 298, 299 Meerfelder Maar described, 197 Melilli, view of a circular valley near-see wood-cut No. 23, 110 --inland cliffs seen neM, 111 Merdogne, fresh-water marls intersected by a dike of basalt above the village 9f, 259 Metamorphic, the term proposed and defined, 374 --rocks of the Alps, altered lias and oolite, 371 -- sometimes pass into sedimentary, 376 -- sometimes divided by st1·ong line of demarcatiou, 376 -- in what manner their age should be determined, 378 -- why those visible to us are for the most part ancient, 380 --why they appear the oldest, 379 Micaceous schist, whence derived, 373 Microscopic fossil shells abundant near Sienna, 163 -- shells of the Paris basin,-see Plate 1V., 250 Militello, list of fossil shells from-see A ppendix II., p. 54 Mineral character, persistency of, why apparently greatest in older rocks, 331 -- characters, proofs of contempora. neous origin derired from, 37, Mineral composition of the sub·Apennine strata, 157 -- of rocks no proof of contemporaneous origin, 161 Minerals in the cavities of lava, Isle of Cyclops, 81 Miocene period, term whence derived, 54 -- proportion of living species in the fossil shells of the, 54 -- position of the beds referrible to the -see diagrams, Nos. 3 and 4, 20, 21 --mammiferous remains of the, 59 -- Marine formations of the, 202 -- fresh-water formations of the, 219 --volcanic rocks of the, 222 -- alluviums, localities of, 217 -- fossil shells of the-see tables Ap· pendix I. -- geueralresults derived from the fossil shells ofthe-Appeudix I., p. 47 -- number of fossil species of shells common to different formations referrible to the, ib., p. 47. -- number of living species iu the fossil shells of the, ib., p. 48 -- numuer of 5pecies common to the pliocene and, ib., p. 49 -- geographical distribution of the living species of the, ib ., 51 Mirambeau, red clay and sand of, 208 Mismer, :dip of the crag strata in a cliff between Dunwich and-~ee wood-cut, No. 33, 175 Misterbianco, valleys excavated through blue marl at, 77 Mitchell, Major, on breccias in Australian caves, 143 Mitscherlich, M., on the minerals found in Somma, 121 Modern causes, remarks on the term, 319 Molassr, thickness of, at Stein, 153 --of Switzerland, 212 --its place in the .series of tertiary for-mations not yet known, 212 Mole, transverse valley of the, 298 Molluscous animals, superior longevity of the ~pecies of, 48 Mont Dor, age of the volcano of, 2GO, 262 --its height, form, and composition, 261 Mont Ferrat, tertiary strata of the hills of, 21 -- hills of, geological structure of the, 211 Monte Calvo, section from to the sea-see diagram No. 29, 167 Monte Cerio, unaltered shells found in the gypsum of, 159 Monte Grifone, cayes containing osseous breccias in, 141 Montlosier, M., on alluviums of different ages in Auvergne, 267 Monte Mario, marine strata of, 138 -- shells changed into calcareous spar in, 160 INDEX. 99 Montmartre, gypsum of, 247 -- bones of quadrupeds, &c. in the gyp· sum of, 251 -- entire absence of marine remains in the gypsum of, 252 Mont Mezen, age of the, 260 Monte Nuovo, formation of, 104, 128 125 Montpellier, tertiary strata of, 215 ' Mont Perrier, position of the Miocene alluviums of-see wood-cut, No. 54 217 -- remains of extinct quadrupeds i~ the alluviums of, 218 -- age of the tra.chytic breccias of, 262 Montsacopa, volcamc cone of-(see Frontispiece,) 186 Mountain chains formed of succes!live igneous and aqueous groups superimposed on each other, 240 --on the relative antiquity of, 337 -- difficulty of determiuing the relative ages of, 350 Moravia, fossil shells of-see tables, Appendix I. Morea, osseous breccias now forming in the, 144 -- tertiary strata of the, 170 --distinct ranges of sea cliffs at va-rious elevations in the, 113, 132 -- fossil shells of the-see tables, Appendix I. Moropano, fossil shells found in tuff near the town of, 126 Mosenberg, a mountain with a triple volcanic cone, 197 Mososaurus of Mae tricht found also in the English chalk, 325 Mundesley, protuberances of chalk in the cl'!lg strata near, 180 Murat, fresh-water deposits covered by volcanic rocks near, 263 Murchison, Mr., on the tertiary strata of Grosooil, near Nice, 135 -- on tertiary strata at the base of the Maritime Alps, 166, 168 --his section of the manner in which the crag rests on the chalk-see diagram No. 30, "173 -- on the Superga, 211 -- on the tertiary formations of Styria, gaam 213, 214 -- on the fresh-water fo1·mation of Ca-dibona, 222 -- on the volcanic rocks of Styria, 224 -- on central France, 227 -- on the lacustrine strata of the Can tal, 239 -- on Auvergne, 258 -- on the Plomb du Cantal, 263 -- on the excavation of valleys, 265 -- on the tertiary formations of Aix, in Provence, 277 - on the terrace formed by the hard beds of the upper green-sand, 292 Murphy, Lieut. H., on the height of the North Downs, 288 Musara, sections of buried cones seen near the rock of, 88 --flowing of the lava of 1811 and 1819 round-see wood-cut, No. 21, 92 --traversed by dikes, 92 Nadder, va~ley of the, 308 Nantes, tertiary strata near, resting on primal ·y rocks, 204 Naples, recent tertiary strata in the district around, 22 -.- volcanic region of, changes which It has undergone in the last 2000 years 118 ' -- recent shrlls in volcanic tuffs near 126 ' Necker, M. L.A., on the dikes of Somma 121 ' --_on the cause of the parallelism of the1r opposite sides, 122 --. on the varieties in textt1re of the d1kes of Somma, 124 Needles of the Isle of Wight fall of one of them into the sea in 1772' 181 Nesti, M., on the fossil el~phant of the upper Val d'Arno, 221 Netherland~, tertiary formations of the, 276 Newer Pl1ocene period-see Pliocene period, newer New haven, patches of tertiary strata found on the chalk near, 286 Nice, height of the tertiary strata above the sea at, 165, 167 -- section from Monte Calvo to the sea by the valley of Magnan near-see dia~ gram No. 29, 167 -- great beds of conglomerate near, 167 -- dip of the strata, 1G8 Niger, delta of the, area covered by the, 329 Nile, its delta now preyed on by currents 28 ' Noegge1·ath, M., his map of the Eifel dis-trict, 193 -- on volcanic uistrict of the Rhine, 201 Norfolk, crag strata of, 171 -- rapid waste of the cliffs on the coast of, 297 Northampton, Lord, fossil fish found near Castrogiovanni by, 67 North Downs, chalk ridge called the, 287 -- section across tbe valley of the Weald from the south to the-see woodcuts, No. 63 and 64, 288 --highest point of the, 288 -- on the former continuity of the chalk of the, with that of the South Downs, 303 No to, Val di, formations of the, 63 --volcanic rocks of thr, 63, 67 Novera, hill of, in Sicily, junction of tuff and limestone in the-see diagram No. 8, 70 g2 |