The American Journal of Science and ArtsS. Converse, 1848 |
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action alcohol alumina ammonia analogy animal appears astronomers atoms baryta beds blue body boiling carbonic acid carboniferous character chemical chlorine coal color comet containing copper Copper Harbor cordierite crystals density deposits Devonian discharge distance electricity ether Europe existence experiments fact feet flame fluid formula fossils genera genus geological give graphite heat hydrochloric hydrochloric acid hydrogen inches iron Journal Lake less light lime limestone liquid magnesia magnetic mass matter means miles mineral nature nearly Neptune nitric nitric acid nitrogen observations obtained Ohio orbit oxyd oxygen particles phenomena planet polarization portion potash precipitate present prism produced Prof Professor protoxyd quantity remarkable River rocks salt sandstone SECOND SERIES shells silicates Silurian solution species specimens stars strata substance sulphuric acid surface telescope temperature tion tube Uranus velocity Verrier wind wire yellow York
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Էջ 225 - ... in an inclined and equatorial direction. " On raising the flame a little more, the effect of the magnetic force was to increase the intensity of the results just described, and the flame actually became of a fish-tail shape, disposed across the magnetic axis. " If the flame was raised until about two-thirds of it were above the level of the axial line, and the poles approached so near to each other (about 0'3 of an inch) that they began to cool and compress the part of the flame at the axial...
Էջ 66 - And the poor beetle that we tread upon, In corporal sufferance finds a pang as great As when a giant dies.
Էջ 121 - PRINCIPLES OF ZOOLOGY; Touching the Structure, Development, Distribution, and Natural Arrangement, of the RACES OF ANIMALS, living and extinct, with numerous Illustrations. For the use of Schools and Colleges. Part I. COMPARATIVE PHYSIOLOGY.
Էջ 265 - If any point be taken in the diameter of a circle which is not the centre, of all the straight lines which can be drawn from it to the circumference, the greatest is that in which the centre is, and the other part of that diameter is the least...
Էջ 290 - Now, here we have analogous phenomena, in the moisture which bedews a cold metal or stone when we breathe upon it ; that which appears on a glass of water fresh from the well in hot weather ; that which appears on the inside of windows when sudden rain or hail chills the external air; that which runs down our walls when, after a long frost, a warm moist thaw comes on.
Էջ 430 - ELEMENTS OF NATURAL PHILOSOPHY; being an Experimental Introduction to the Study of the Physical Sciences. Illustrated with numerous Engravings on Wood.
Էջ 79 - ... is directly as the square root of the pressure, and inversely as the square root of the density...
Էջ 63 - Mr. Mason, a young and ardent astronomer, a native of the United States of America, whose premature death is the more to be regretted as he was (so far as I am aware) the only other recent observer who has given himself with the assiduity which the subject requires, to the exact delineation of Nebula;, and whose figures I find at all satisfactory.'^ He also prepared a college treatise on Practical Astronomy.
Էջ 270 - The cultivators in each age may, in a sense, be said to be the interpreters and popularizers of those who have preceded them ; and it is in this sense, and in this sense only, that this part can be attributed to MilL In this respect he is to be strongly contrasted with the great majority of writers on political economy, who, on the strength, perhaps, of a verbal correction, or an unimportant qualification, of a received doctrine, if not on the score of a pure fallacy, would fain...
Էջ 409 - ... impurities. Fortunately it is neither difficult to detect or clean the gutta of foreign matter ; it being only necessary to boil it in water, until well softened, roll out the substance into thin sheets, and then pick out...