The Quarterly Journal of Science, Volume 6John Churchill and Sons, 1869 |
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Page 11
... feet in a second , † it traverses steel wire at the rate of 16,023 feet per second . The density of a substance does not therefore necessarily impede the passage of sound ( any more than that of mechanical motion ) , and when the field ...
... feet in a second , † it traverses steel wire at the rate of 16,023 feet per second . The density of a substance does not therefore necessarily impede the passage of sound ( any more than that of mechanical motion ) , and when the field ...
Page 15
... feet ; and in this cañon five well - defined terraces may be distinctly seen . The level of the lake was once certainly at least 600 feet higher than it now is ; and it is not improbable that it then com- municated with the valleys both ...
... feet ; and in this cañon five well - defined terraces may be distinctly seen . The level of the lake was once certainly at least 600 feet higher than it now is ; and it is not improbable that it then com- municated with the valleys both ...
Page 17
... feet in the month of April , to 2 feet at the end of October . Borax occurs in the form of crystals of various dimensions embedded in the mud of the bottom , which is of an exceedingly unctuous character , and is found to be most ...
... feet in the month of April , to 2 feet at the end of October . Borax occurs in the form of crystals of various dimensions embedded in the mud of the bottom , which is of an exceedingly unctuous character , and is found to be most ...
Page 18
... feet square and 9 feet in depth . This raft or barge was moved in parallel lines across the surface of the lake , and at each station the four dams were sunk simultaneously by their own weight into the mud forming the bottom . When they ...
... feet square and 9 feet in depth . This raft or barge was moved in parallel lines across the surface of the lake , and at each station the four dams were sunk simultaneously by their own weight into the mud forming the bottom . When they ...
Page 19
... feet , this would represent about 565,000 cubic yards , or , allowing a cubic yard to weigh a ton , which is a very low estimate , the total weight of 100 acres of mud , in its wet state , will be approximately 565,000 tons . If the mud ...
... feet , this would represent about 565,000 cubic yards , or , allowing a cubic yard to weigh a ton , which is a very low estimate , the total weight of 100 acres of mud , in its wet state , will be approximately 565,000 tons . If the mud ...
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acid ammonia animal appears Astronomer Astronomer Royal beds borax British calcareous carbon carbonic acid Carboniferous chemical chloride cholera coal colour considerable containing Crannoge crystals deposits described Devonian discovery earth eclipse ether examination existence experiments fact feet Geological heat hydrochloric acid hydrogen important inches instrument interesting iodine iron Journal kelp labour light limestone lines London Lough Gur lower luminous matter means Messrs metal microscope miles mineral mines natural science observations obtained Old Red Sandstone organic oxide oxygen paper pass period Permian phenomena plants plates portion present prism produced Professor protuberances quantity recently red weed remarkable rocks Royal sandstone scientific seen silicates Silurian Society solar solution species specimens spectra spectroscope spectrum star stone strata substance sulphur sulphuric acid surface temperature tion transit transit of Venus tube upper vapour whilst
Popular passages
Page 614 - SOUND : a Course of Eight Lectures delivered at the Royal Institution of Great Britain. By JOHN TYNDALL, LL.DFRS New Edition, crown 8vo.
Page 115 - Stand with your back to the wind, and the barometer will be lower on your left hand than on your right.
Page 316 - The POLAR WORLD; a Popular Description of Man and Nature in the Arctic and Antarctic Regions of the Globe. By Dr.
Page 575 - ... highly probable, though not completely demonstrated, the applicability to living beings of the laws which have been ascertained with reference to dead matter, I feel constrained at the same time to admit the existence of a mysterious something lying beyond, a something sui generis, which I regard, not as balancing and suspending the ordinary physical laws, but as working with them and through them to the attainment of a designed end. What this something which we call life may be is a profound...
Page 161 - When the durion strikes a man in its fall, it produces a dreadful wound, the strong spines tearing open the flesh, while the blow itself is very heavy ; but from this very circumstance death rarely ensues, the copious effusion of blood preventing the inflammation which might otherwise take place. A Dyak chief informed me that he had been struck down by a durion falling on his head, which he thought would certainly have caused his death, yet he recovered in a very short time.
Page 28 - Science, the objects of which shall be to give a stronger impulse and more systematic direction to scientific inquiry...
Page 578 - Others find its justification, its "raison d'etre," in its being either the torch-bearer leading the way, or the handmaiden holding up the train of Physical Science; and a very clever writer in a recent magazine article, expresses his doubts whether it is, in itself, a more serious pursuit, or more worthy of interesting an intellectual human being, than the study of chess problems or Chinese puzzles.
Page 432 - ... embraces, in one stupendous analogy, the growth of a solar system from molecular chaos, the shaping of the earth from the nebulous cubhood of its youth, through innumerable changes and immeasurable ages, to its present form ; and the development of a living being from the shapeless mass of protoplasm we term a germ.
Page 259 - IT has often been maintained on chemical grounds that hydrogen gas is the vapour of a highly volatile metal. The idea forces itself upon the mind that palladium with its occluded hydrogen is simply an alloy of this volatile metal, in which the volatility of the one element is restrained by its union with the other, and which owes its metallic aspect equally to both constituents.
Page 132 - In about two minutes,' writes the Professor in his preliminary report, dated the I4th of October, 'a reaction commenced. At first a moderate quantity of brown nitrous fumes escaped; these were followed by copious blackish, then grey, then whitish fumes, produced by the escape of steam, carrying with it in suspension a portion of the flux. After the lapse of five or six minutes...