Report of the Annual Meeting, 第 11 巻Office of the British Association, 1842 |
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acid angle animal antero-posterior diameter appears articular surface base Batrachian Birmingham body bone breadth British Association carapace carriages caudal vertebræ cavity centrum cervical vertebræ Cetiosaurus characters Chelone Committee concave convex corresponding Crocodiles Crocodilian curve Cuvier Diffs Dist Ditto dorsal vertebræ engine Eocene existing experiments extinct extremity feet femur fossil friction Gavial genus heat Iguanodon inches indicator integrating wheel John Lacertian length lines Liverpool longitudinal lower magnetic margin mean Megalosaurus middle miles per hour Nasmyth nearly neural arch neurapophysis oblique processes observations obtained oolite piston plane plastron plate Plesiosaur Pliosaurus Plymouth portion posterior Posts present Prof Professor proportion remarkable Report reptiles resemblance resistance ribs ridge Saurians scutes Section side slightly species specimen speed spine spinous process Streptospondylus structure suture teeth Teleosaurus temperature tion tooth train transverse diameter transverse process upper velocity Wealden weight Yards
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xxviii ページ - The End of our Foundation is the knowledge of Causes and secret motions of things, and the enlarging of the bounds of Human Empire, to the effecting of all things possible.
v ページ - To give a stronger impulse and a more systematic direction to scientific inquiry, — to promote the intercourse of those who cultivate Science in different parts of the British Empire, with one another and with foreign philosophers, — to obtain a more general attention to the objects of Science, and a removal of any disadvantages of a public kind which impede its progress.
155 ページ - From these teeth, however, they differ in their greater degree of compression, and in a slight contraction at the base of the crown...
5 ページ - when a body cools in vacua, surrounded by a medium whose temperature is constant, the velocity of cooling for excess of temperature in arithmetical progression increases as the terms of a geometrical progression, diminished by a constant quantity.
37 ページ - OQ, and the second vertical, with its circumference resting on the flat surface of the first at P, so as to be driven round by the motion of the first disc. The velocity of the second disc will depend on OP, the distance of the point of contact from the centre of the first disc; so that if OP be made always equal to the generating line, the condition* of the instrument will be fulfilled.
4 ページ - The well known uniformity in the principal physical properties of all the gases, and particularly the perfect identity in the laws of their dilatation, render it very probable, that in this class of bodies the disturbing causes, to which...
122 ページ - ... give an inequality to that surface ; this is the ossified remnant of the pulp, which, being firmer than the surrounding dentine, forms a slight transverse ridge in the middle of the grinding surface. The tooth in this stage has exchanged the functions of an incisor for that of a molar, and is prepared to give the final compression, or comminution, to the coarsely divided vegetable matters. The marginal edge of the incisive condition of the tooth and the median ridge of the molar stage are more...
47 ページ - Highly glazed letter paper is washed over with a solution of one drachm of nitrate of silver to an ounce of distilled water ; it is quickly dried, and a second time washed with the same solution. It is then, when dry. placed for a minute in a solution of...
123 ページ - ... by minute elliptical radiated cells, whose long axis is parallel with the plane of the concentric lamellae, which surround the few and contracted medullary canals in this substance.
200 ページ - Streptospondylus differs from its ancient contemporary, and which it retains unaltered throughout the whole series of oolitic strata, is no approximation to the ball-and-socket structure of modern Crocodiles which first appears in the Mosasaurus and the Eocene Crocodiles, but is the very reverse. As reasonably might we infer that the Teleosaur was an intermediate form between the Streptospondylus and modern Crocodiles, and that the anterior ball had first subsided, and a...