Geology and Mineralogy Considered with Reference to Natural Theology, Volumen 2Carey, Lea and Blanchard, 1837 |
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Página 40
... Margin of shallow water that was subject to changes of level , and in which sediments of sand and mud were ... rock containing these footsteps , which are of the highest interest to the Palæonthologist , as they establish the new fact of ...
... Margin of shallow water that was subject to changes of level , and in which sediments of sand and mud were ... rock containing these footsteps , which are of the highest interest to the Palæonthologist , as they establish the new fact of ...
Página 49
... marginal bands of the fossil species . ( Original . ) C. Central part of the Pen , raised like the shaft of a quill ... marginal bands ; C. axis of the shaft ; D. excretory duct of the Ink bag , distended with petrified Ink . ( Original ...
... marginal bands of the fossil species . ( Original . ) C. Central part of the Pen , raised like the shaft of a quill ... marginal bands ; C. axis of the shaft ; D. excretory duct of the Ink bag , distended with petrified Ink . ( Original ...
Página 50
... bands . C , Axis of the Pen . d , upper plate of marginal band , having an unusually corrugated surface , which may be the result of imperfect growth of the transverse fibres ; if fully expanded they would probably have resembled those ...
... bands . C , Axis of the Pen . d , upper plate of marginal band , having an unusually corrugated surface , which may be the result of imperfect growth of the transverse fibres ; if fully expanded they would probably have resembled those ...
Página 51
... marginal band across the shaft , at d . e . Thin lamina of the white pulverulent substance of a decomposed Plate ... bands . B.B. Marginal bands dividing the bases of the barbs from the internal part or body of the shaft . C. Axis of the ...
... marginal band across the shaft , at d . e . Thin lamina of the white pulverulent substance of a decomposed Plate ... bands . B.B. Marginal bands dividing the bases of the barbs from the internal part or body of the shaft . C. Axis of the ...
Página 52
... marginal bands . f . Upper surfaces of a third plate , exhibiting minute curved striæ , ascending symmetrically in opposite directions from each side of the axis of the shaft C , and descending towards its margin . These curved striæ ...
... marginal bands . f . Upper surfaces of a third plate , exhibiting minute curved striæ , ascending symmetrically in opposite directions from each side of the axis of the shaft C , and descending towards its margin . These curved striæ ...
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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...