The Quarterly Journal, Volume 17John Murray, 1824 |
From inside the book
Results 1-5 of 93
Page 3
... quantity of dew for the night had been depo- sited , the triangular figures were perfectly well defined , their hypo- thenuses being bounded by the edges of the metallic surface , and their several bases and perpendiculars ...
... quantity of dew for the night had been depo- sited , the triangular figures were perfectly well defined , their hypo- thenuses being bounded by the edges of the metallic surface , and their several bases and perpendiculars ...
Page 6
... quantity was deposited , the hoar - frost in the morning clearly proved . The temperature , and the hygrometric state of the air , were also , from other collate- ral circumstances , to be regarded as highly favourable to the for ...
... quantity was deposited , the hoar - frost in the morning clearly proved . The temperature , and the hygrometric state of the air , were also , from other collate- ral circumstances , to be regarded as highly favourable to the for ...
Page 7
... quantity of moisture in the air has been abundant , I have observed the dewy particles deposited on metals to attain a considerable magnitude ; and examples have even oc- curred of polished tin surfaces being completely covered with ...
... quantity of moisture in the air has been abundant , I have observed the dewy particles deposited on metals to attain a considerable magnitude ; and examples have even oc- curred of polished tin surfaces being completely covered with ...
Page 9
... quantity of dew was formed on the grass . A register thermometer on the short herbage , indicated the maximum cold to have been 52 ° , and of the air , at the elevation before mentioned , 60 ° . The difference between these maximum ...
... quantity of dew was formed on the grass . A register thermometer on the short herbage , indicated the maximum cold to have been 52 ° , and of the air , at the elevation before mentioned , 60 ° . The difference between these maximum ...
Page 10
... quantity of dew deposited , and the greater the body it presents , the more abundant it is likely will be the formation . That the quantity of herbage has a considerable effect , may be inferred from the expe- riment , that when one ...
... quantity of dew deposited , and the greater the body it presents , the more abundant it is likely will be the formation . That the quantity of herbage has a considerable effect , may be inferred from the expe- riment , that when one ...
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Common terms and phrases
action ammonia animal antimony aperture appears ascertained Astr atmosphere barometer Berl Blainville body carbonic carbonic acid chronometers colour comet common condensation considerable copper Decl deposited diameter dipping needle distance earth effect elastic electricity equal evaporation experiment eye-glass feet fish fluid force fresh water fulminating fulminating silver Georgian glass grains heat hydrogen hygrometer inches influence iron Jahrb Lecture magnetic Magnitude of Stars means Mém metal moisture Moon muriatic acid natural needle nitric acid object object-glass observations obtained orbit oscillations oxide oxygen paper parallax particles phenomena Pingré Planet's or Star's plate pole portion potash precipitated produced proportion quantity remarks resistance respect river river Maule Semiramis shell shew Sidereal silver solution species sphere Star's Declination Star's Name substance sulphate sulphuric acid supposed surface telescope temperature tems tides tion tube vapour velocity Venus Mercury whole wire
Popular passages
Page 122 - ... increased, and the undulations were feebler. At a smaller distance the surface of the mercury became plane ; and rotation slowly began round the wire. As the magnet approached, the rotation became more rapid, and •when it was about half an inch above the mercury, a great depression of it was observed above the wire, and a vortex, which reached almost to the surface of the wire.
Page 127 - Experiments have never been the means of discovery ; and a survey of what has been attempted of late years in physiology will prove that the opening of living animals has done more to perpetuate error than to confirm the just views taken from the study of anatomy and natural motions.
Page 360 - ... 6 to 5. The following Table exhibits the relative adhesion of nails of various kinds, when forced into dry Christiana Deal, at right angles to the grain of the wood...
Page 130 - An Account of the Effect of Mercurial Vapours on the Crew of His Majesty's Ship, Triumph...
Page 133 - Now, though we have not the means of ascertaining the extent of our own atmosphere, those of other planetary Bodies are nevertheless objects for astronomical investigation; and it may be deserving of consideration, whether, in any instance, a deficiency of such matter can be proved, and whether, from this source, any conclusive argument can be drawn in favour of ultimate atoms of matter in general. For, since the law of definite proportions discovered by chemists is the same for all kinds of matter,...
Page 338 - By invisible, but ever-active agencies, the waters of the deep are raised into the air, whence their distribution follows, as it were by measure and weight, in proportion to the beneficial effects which they are calculated to produce. By gradual, but almost insensible expansions, the equipoised currents of the atmosphere are disturbed, the stormy winds arise, and the waves of the sea are lifted up ; and that stagnation of air and water is prevented, which would be fatal to animal existence. But the...
Page 237 - I have used the same repeatedly, without any apparent diminution of its elastic powers. The principal advantages of this blow-pipe are its great portability, and length and steadiness of action (in which I consider it much superior to the hydraulic blowpipe), together with the perfect liberty at which, when properly mounted, it leaves the operator's hands. This blowpipe is applicable to any of the gases, and may, I conceive, be applied with advantage to contain the explosive mixture of oxygen an'd...
Page 133 - ... we may without hesitation conclude, that those equivalent quantities, which we have learned to appreciate by proportionate numbers, do really express the relative weights of elementary atoms, the ultimate objects of chemical research.
Page 268 - ... 1 : 2'56. From comparisons of the strain required to cause permanent alteration in different kinds of steel, the author concludes, that in the process of hardening, the particles are put into a state of tension among themselves, which lessens their power to resist extraneous force ; and the phenomena of hardening may be referred to the more rapid abstraction of heat from the surface of the metal than can be supplied from the internal parts, whence a contraction of the superficial parts round...
Page 122 - Masses of mercury of several inches in diameter were set in motion, and made to revolve in this manner, whenever the pole of the magnet was held near the perpendicular of the wire ; but when the pole was held above the mercury between the two wires, the circular motion ceased ; and currents took place in the mercury in opposite directions, one to the right, and the other to the left of the magnet.