784 



INDEX. 



Antiquity of man, 132. 



Antrim, basalt, age of, 242. 



rocks altered by dikes in, 613. 



Ants, winged; of (Eningen, 252. 



Antwerp Crag, fossils of, 207. 



Apateon pedestris, a carboniferous reptile, 505. 



Apennines, Northern, metamorphic rocks of, 

 759. 



Aphanite, or cornean, 604. 



Apiocrinites rotundus, Great Oolite, 403. 



Appalachian coal-field, 497, 501. 

 Appalachians, conversion of coal into anthra- 

 cite in, 743. 



Apteryx of New Zealand, 129. 



Aptyclius lotus, 395. 



Apuan Alps, marble of, 759. 



Apus (?) dubius, Coal, 493. 



Aquapendente, Older Pliocene volcanic rocks 

 of, 673. 



Aqueous deposits, superposition and chronolo- 

 gy of, 92. 



erosion in Palma, 637. 



rocks defined, 2. 



rocks, mineral character of, 94. 



Aquitanien, term explained, 258. 



Aralo-Caspian formations, 211. 



Arans, volcanic formations, 700. 



Araucaria, cone of fossil, Inferior Oolite, 410. 



Arbroath paving-stone, 526. 



section from, to the Grampians, 48. 



Archceoptcryx macrura, Solenhofen, 397. 



Archegosaurus minor, Coal ; A. raedius, skin 

 of, 506. 



Archiac, M. d', on fossils of Chalk, 336. 



on nummulites, 307. 



on Merita conoidea, 305. 



on pisolitic limestone, 313. 



on Touraine faluns, 218. 



Arctic icebergs, size and weight of, 146. 



Ardeche, lava in, 617. 



Area of the Wealden, 351. 



Arenaceous rocks described in, 11. 



Arenig, or Lower Llandeilo, formation. 567. 



Arenigs, volcanic formations of, 700. 



Argile plastique, 305. 



Argillaceous rocks, 11. 



— — schist, 734. 



Argyle, Duke of, on Isle of Mull Leaf-beds, 242. 



Argyleshire, trap vein in cliff, 610. 



Arkose, 735. 



Arran, age of granite in, 727. 



amygdaloid filled with brown spar near, 



622. 



greenstone dike in, 610. 



section of, 722. 



Arthur's seat, altered strata of, 615. 



Armcola, teeth of, 136. 



AsapJius caudatus, Silurian, 559. 



tyrannies, Silurian, 566 ; A. Buchii, 566. 



Ascension, lamination of volcanic rocks in, 752. 



Ashby-de-la-Zouch, fault in coal-field of, 69. 



Aspidura lorieata, Muschelkalk, 439. 



Astarte bipartita (A. Omalii), 204. 



borealis, Clyde drift, 153. 



compressa, 164. 



Asterolepis, size of, 533. 



Asterophyllites foliosus, Coal, 473. 



Asterias limestone, fossils of, 232. 



Asti, formations at, 209. 



Astrangia lineaia, Yirginia, 279. 



Astrcea basalHformis, 516. 



Astropecten cr'ispatus, Sheppey, 294. 



Atherfield beds, Isle of Wight, 342. 



Athyris navicula, Ludlow, 553. 



Atlantic mud composed of organic bodies, 320. 



Islands, 277. 



flora of, compared to American, 271. 



Atlantis. Miocene, theory of, 267-275. 



Atmosphere of Coal period, 490. 



Atrium of a volcano, 636. 



Aluria ziczac (Nautilus zigzag), Sheppey and 

 Porto Santo, 293, 675. 



Atrypa reticularis, Aymestry, 554. 



Augite, 595, 598, 604. 



Augitic porphyry, 604. 



Aulopora serpens, Devonian, 539. 

 Aurillac, freshwater strata of, 230. 

 Austen, Mr., on Upper Greensand, 331. 

 Australia, auriferous gravel of, 7. 



■ cave-breccias of, 126. 



gold of, 779. 



mammalia of, 127. 



Auvergne, alluvium in, 80. 



age of trachytic rocks in, 657. 



extinct volcanoes of, 684. 



granite veins, 773. 



indusial limestone in, 226. 



lacustrine strata of, 222-228. 



Lower Miocene, freshwater formations of, 



227. 

 — — mineral veins of, 773. 



springs from spent volcanoes, 766. 



succession of changes in, 220. 



Avicula cygnipes, Lias, 416. 



contorta, Trias, 441. 



inazquivalvis, Lias, 416. 



papyracea, Coal, 495. 



socialis, Muschelkalk, 439. 



Aviculopecten sublobatus, 518. 

 Aymestry limestone, fossils of, 553. 

 Azores, Upper Miocene, shells of, 676. 



Bacillaria anceps, "White Chalk, 326. 

 Baculites anceps, Chloritic Marl, 326. 



Faujasii, White Chalk, 826. 



vulgaris (?) in Tripoli, 25. 



Baffin's Bay, drift of, described, 144. 



Bagshot beds, fossils of, 288. 



BaiiB, Bay of, tufaceous strata, containing im 



plements, 661. 



subterranean igneous action in, 722. 



Bakewell, Mr., on cleavage in Swiss Alps, 748. 

 Bala beds, thickness and fossils of, 564. 

 Balcena emarginata, tympanic bone of, 202. 

 Balgray, near Glasgow, stumps of trees in 



coal, 480. 

 Balistidai, defensive spine of, 289. 

 Bangor group, 578. 



Barcelona, marine tertiary strata of, 673. 

 Barmouth sandstones, 578. 

 Barranco, section through the, 638. 



de las Angustias, 638. 



Barrande, M. Joachim, on primordial zone, 



574-579. 



on trilobites, 574, 5S0. 



Barrett, M. Louis, on bird in Blackdown beds, 



332. 

 Barton clay, shells of, 287. 

 Basalt, 598, 604. 



columnar, in the Vicentin, 618. 



columnar, of Giant's Causeway, 6. 



— — columnar in the Eifel, 618. 



specific gravity of minerals in, 657. 



Basanite, 604. 



Basilosaurus, 311. 



Basset, term explained, 56. 



Basterot, M. de, on Bordeaux tertiary strata, 



183. 

 Bateman, Mr. J. P., on Blackpool shells, 160. 

 Batrachian (?), eggs of, in Old Bed, Scotland, 



529. 

 Bats, molars of insectivorous, Kyson, 294. 

 Bay of Pundy, impressions in red mud of, 453. 



denudation of coal-field in, 488. 



Bayfield, on inland cliffs in Gulf of St. Law- 

 rence, 78. 

 Bean, Mr., on fossil shells from Oolite, 411. 

 Beaumont, M. E. de, on line between Miocene 



and Eocene, 218. 



on pisolitic limestone, 313. 



on Chalk, 336. 



on island in Eocene sea, 367. 



on Lias, 417. 



on formation of granite, 705. 



on chemical deposits in veins, 775. 



on Jurassic plutonic rocks, 724. 



on plutonic action in Alps, 757. 



Beauport, near Quebec, glacial drift at, 163. 

 Beche, Sir H. de la, on marine lizards, 427 

 on Oolite, 429. 



