American Journal of Science and Arts, Հատոր 51Kline Geology Laboratory, Yale University., 1846 |
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Alabama angle animal appears Astræa axis line barometer beds blowing body bones breeze Brig Capt carbonic acid carbonic oxide cells chloride Claiborne close-reefed cloudy coal coast color commenced contains coral Cuba dismasted Eocene feet Florida foresail formation Fort Brooke fossil genus geological Gulf of Mexico heat heavy gale heavy sea hove hurricane hydrogen inches increasing insects iron Islands lamellæ latter light lime limestone magnesia magnetic main-topsail margin maxillipeds metals midnight miles Miocene moderate nearly nitric acid noon northern Northers observations obtained oxygen P. M. wind passed phosphoric acid plate portion posterior potash Prof rain rays reefed result rocks sails salt sandstone SECOND SERIES Sept septa shale shell ship side siliceous species specimens squalls STANFORD storm strata Strophomena sulphate sulphuric acid surface temperature thick tion topsails veered vessel weather wind N. E. wire
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Էջ 14 - ... might be found any course of wind, from the rotative to the rectilinear, together with varying conditions as regards clouds and rain. " But I have never been able to conceive that the wind in violent storms moves only in circles. On the contrary, a vortical movement, approaching to that which may be seen in all lesser vortices, aerial or aqueous, appears to be an essential element of their violent and long continued action, of their increased energy towards the centre or axis, and of the accompanying...
Էջ 15 - The degree of vorticular inclination in violent storms must be subject, locally, to great variations ; but it is not probable that on an average of the different sides, it ever comes near to forty-five degrees from the tangent of a circle, and that such average inclination ever exceeds two points of the compass, may well be doubted.
Էջ 423 - ... the particle of magnetic matter would have its north and south poles opposite to, or facing the contrary poles of the inducing magnet ; whereas, with the diamagnetic particles, the reverse would obtain ; and hence there would result, in the one substance, approximation ; in the other, recession. On Ampere's theory, this view would be equivalent to...
Էջ 29 - ... and we are forced, by this class of facts, to reason as if light was material. When a portion of light enters a body, and is never again seen, we are entitled to say that it is detained by some power exerted over the light by the particles of the body. That it is attracted by the particles seems extremely probable, and that it enters into combination with them, and produces various chemical and physical effects, cannot well be doubted...
Էջ 114 - I have employed consists of two plates of amalgamated zinc and one of platinized silver, 6 inches by 8. The working mixture is sulphuric acid and water, the strength varying with the temperature, and the amount of work to be performed. I have found a wine-glass of acid to three quarts of well-water, at the temperature acquired by standing a few hours in a room at 70° Fah.
Էջ 14 - ... or axis, and of the accompanying rain. In conformity with this view the storm figure on my chart of the storm of 1830 was directed to be engraved in spiral or involute lines, but this point was yielded for the convenience of the engraver. * * * * * " The common idea of rotation in circles, however, is sufficiently correct for practical purposes, and for the construction of diagrams, whether for the use of mariners, or for determining between a rotative and general rectilinear wind, on one hand,...
Էջ 422 - These movements may be beautifully seen by sprinkling bismuth in very fine powder on paper, and tapping on the paper while subjected to the action of a magnet. The whole of these facts, when carefully considered, are resolvable, by induction, into the general and simple law, that while every particle of a magnetic body is attracted, every particle of a diamagnetic body is repelled, by either pole of a magnet. These forces continue to be exerted as long as the magnetic power is sustained, and immediately...
Էջ 23 - Throscw. 23. Descriptions of new species of Curculionites of North America, with Observations on some of the species already known.
Էջ 112 - It is well known to those who are conversant with optical phenomena, that the brilliant play of prismatic colours exhibited by mother-of-pearl is due to the structure of the surface, provided the shell is cut and polished in a particular manner. This interesting fact was announced to the scientific world in 1829 by the discoverer, Dr Brewster, who successfully transferred, by pressure, the splendid tints of the pearl to black wax, fusible metal, balsam of tolu, lead, tin, and various other substances....
Էջ 37 - ... have been unequivocally in favour of the doctrine of interference. In order to apply this important fact, let us take a piece of coal, one of the blackest and most opaque of all substances, and which does not reflect to the eye a single ray out of those which enter its substance. The size of its particles is so small, that they are incapable of reflecting light. When a number of these particles are placed together, so as to form a surface, and other particles behind them so as to form a solid,...