Geology and Mineralogy Considered with Reference to Natural Theology, Volumen 2Carey, Lea and Blanchard, 1837 |
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Página 91
... scar on the exterior of the bark of another large trunk of Sigillaria from Elsecar . Nat . * M. Ad . Brongniart found a stem of Sigillaria in a coal - mine at Essen in Westphalia , which was dichotomous near its top . size . On ...
... scar on the exterior of the bark of another large trunk of Sigillaria from Elsecar . Nat . * M. Ad . Brongniart found a stem of Sigillaria in a coal - mine at Essen in Westphalia , which was dichotomous near its top . size . On ...
Página 92
... scar is a cavity , indicating the place of attachment of a cone . The upper portion of each scar is marked with furrows , produced by pressure of the long radiating scales at the bottom of the cone . This pressure has nearly obliterated ...
... scar is a cavity , indicating the place of attachment of a cone . The upper portion of each scar is marked with furrows , produced by pressure of the long radiating scales at the bottom of the cone . This pressure has nearly obliterated ...
Página 93
... scar . As the bark has fallen off , we have only the impression of its inner surface . This sur- face exhibits small ... scar , 44 inches in its longer , and 3 inches in its shorter diameter ) preserved in shale from an unknown lo ...
... scar . As the bark has fallen off , we have only the impression of its inner surface . This sur- face exhibits small ... scar , 44 inches in its longer , and 3 inches in its shorter diameter ) preserved in shale from an unknown lo ...
Página 94
... Scar is without in- dications of bark - scales , and is covered with radiat- ing furrows , inpressed on it by the long slender scales of the base of the Strobilus , which have obli- terated the bark - scales . * The character of this scar ...
... Scar is without in- dications of bark - scales , and is covered with radiat- ing furrows , inpressed on it by the long slender scales of the base of the Strobilus , which have obli- terated the bark - scales . * The character of this scar ...
Página 95
... scar , which gave origin to a leaf ; it was a dicotyledonous plant , pro- bably allied to Sigillaria ; and its stem ... scars are separated by a groove , Fig . 7. b .; their disposition in the vertical direction is indicated by the line ...
... scar , which gave origin to a leaf ; it was a dicotyledonous plant , pro- bably allied to Sigillaria ; and its stem ... scars are separated by a groove , Fig . 7. b .; their disposition in the vertical direction is indicated by the line ...
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70 Fath Post Agassiz air chambers Ammonites animal articulating axis Belemnite beneath bones bony Buckland Carboniferous cavity Chalk Coal formation column cone Conybeare Coprolite Dikes disposition dorsal enamel Encrinites Moniliformis exhibits extinct Fath Dyke feet fibres figure fishes footsteps fossil fractures Fragment genus ginal Goldfuss Granite Hibberti horny Ichthyosaurus inches Ink-bag intersected joints LENOX AND TILDEN Lepidodendron Lias at Lyme Limestone lobes Loligo Longitudinal section lower Jaw Lyme Regis magnified marginal bands Megalichthys Megatherium Nautilus Nautilus Pompilius nearly Note Oolite Original Oxford Museum Pentacrinites Petioles Plesiosaurus Plesiosaurus Dolichodeirus Port Jackson Shark portion Pterodactylus PUBLIC LIBRARY ASTOR recent Red Sandstone represented scales scar Sharks shell showing side arms Siphuncle Skeleton slate Sowerby species specimen Stonesfield strata stratified rocks sub-vertebral surface Teeth Tertiary TILDEN FOUNDATIONS tion tooth tracks Trans transverse plates Transverse section TREATISE tubercles upper Veins Vertebræ vertebral column Volcanoes YORK PUBLIC LIBRARY
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Página 104 - The following observations by the same gentleman in a recent communication to the Geological Society of London, (April, 1836,) appear to contain the rudiments of a Theory, which, when maturely developed, promises to offer a solution of this difficult and complex Problem. " If it be admitted that fissures may have been produced by changes in the temperature of the earth, there can be little difficulty in also admitting that electricity may have powerfully influenced the existing arrangement of the...