The Quarterly Journal of the Geological Society of London, Volume 30The Society, 1874 Includes Proceedings of the Society (separately paged) from v. 30, 1874-v. 107, 1951/52. |
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Common terms and phrases
Ammonites angle appear articular augite bands basaltic beds Beer Head Beinn bone border boulders brachial valve brown calcareous Campbell-Randt Carboniferous cavity Chalk character Chatetes chlorite clay colour conglomerate containing coracoid corallites crystalline crystals D'Orb denudation deposits described district dolerite drift evidence exhibited feet felsite felspar felspathic fine-grained formation fossils fragments Gault genus Geol Geological glacial glacier granite gravel Greensand grey Griquatown hills igneous Iguanodon inches irregular island jasper jaspery rock lake laminated lavas limestone lines lower magnetite margin marked masses Mastodonsaurus miles mineral Miocene mountains nearly nodules Obolus occur olivine outer pebbles pedicle-valve plagioclase plates portion posterior present Prof pseudomorphs quartz quartzite remarkable ridge river sand sandstone scapula seen shale shells side siliceous Silurian similar species specimens strata striæ surface Tertiary thickness thin tion transverse Trimerella unconformably upper valley veins vertebræ volcanic
Popular passages
Page cxxviii - FREDERICK M°CoY, FGS One vol., Royal 410. Plates, /i. is. A CATALOGUE OF THE COLLECTION OF CAMBRIAN AND SILURIAN FOSSILS contained in the Geological Museum of the University of Cambridge, by JW SALTER, FGS With a Portrait of PROFESSOR SEDGWICK.
Page 296 - ... shore has been determined by the action of the sea. The naked and precipitous cliffs which overhang the deep, the rocks hollowed, perforated, as they are farther advanced in the sea, and at last insulated, lead to the same conclusion, and mark very clearly so many different stages of decay. It is true, we do not see the successive steps of this progress exemplified in the states of...
Page 12 - It is impossible to look at the conformation of this strange reptile and to doubt that it hopped or walked, in an erect or semi-erect position, after the manner of a bird, to which its long neck, slight head, and small anterior limbs must have given it an extraordinary resemblance.
Page 507 - Corallum free, discoid, plano-convex, sharp-edged, from 5 to 8 lines in diameter, and about 1 line in greatest thickness. Under surface concave, covered with a very thin, smooth, and not regularly striated epitheca, which usually exhibits two or three concentric wrinkles. In general the epitheca is so delicate as to reveal clearly through its substance the bases of the superjacent corallites. Upper surface gently convex, not exhibiting any tubercles or elevations of any kind. Corallites subequal...
Page 254 - Hath rent a strange and shatter'd way Through the rude bosom of the hill, And that each naked precipice, Sable ravine, and dark abyss, Tells of the outrage still. The wildest glen, but this, can show Some touch of Nature's genial glow ; On high...
Page 11 - The specimen described by the author consisted of the brain-case, with the basal portion of both jaws. The author described in detail the structure and relations of the various bones composing this skull. which is rendered especially remarkable by the denticulation of the alveolar margins of the jaws, to which its generic appellation refers. The denticulations, which are intrinsic parts of the bone bearing them, are of two sizes, — the smaller ones about half a line in length, the larger ones from...
Page 32 - Reade makes similar remarks in regard to the Lancashire drift shells. Thus he says, " The association of the various species, distributed entirely without order through the clays, shows that they could not possibly have lived together on the same bottom, some being peculiar to sand, others to mud, some to rock, others to shingle, some requiring deep water and others shallow ; so that the conclusion is irresistibly forced upon us that they must have been to a large extent transported
Page 768 - By LC Miall, Esq. Communicated by Prof. P. Martin Duncan, FRS, FGS The specimen noticed by the author was obtained from the LowMain Coal-seam of Newsham, Northumberland. The component bones are a parasphenoid and a pair of pterygo-palatals. The left dental plate agrees with the type of Ctenodus cristatus (Agassiz) in the Leeds Museum.
Page 254 - No marvel thus the Monarch spake ; For rarely human eye has known A scene so stern as that dread lake, With its dark ledge l of barren stone.
Page 49 - In conclusion, he alluded to the loss which the Society had sustained in the death of Professor...