Què opinen els usuaris - Escriviu una ressenya
No hem trobat cap ressenya als llocs habituals.
Altres edicions - Mostra-ho tot
Records of the School of Mines and of Science Applied to ..., Volum 1,Parts 3-4
Visualització completa - 1858
Records of the School of Mines and of Science Applied to the ..., Volum 1,Part 2
Visualització completa - 1853
Records of the School of Mines and of Science Applied to the ..., Volum 1,Part 1
Visualització completa - 1852
abstract laws acquainted advance advantages afforded alloys analytical chemistry animal appear applications of science assaying attention beautiful beds Boutigny Britain character chemical chemist chemistry coal measures collections colour connexion copper direction discovered discovery districts electricity empiricism employed endeavour engine England example existence experience fact fossils furnace Geological Survey geologist heat ignorance illustration important industry instance Institution instruction interest investigation iridium iron laboratory labour land laws lectures light lode magnet manufacture maps material means metal metallurgical mind mineral mineralogy Mining Record Office mode Museum nation natural history numerous object observation obtained old red sandstone operations palaeontology Permian phenomena physical possess pounds present principles processes produce progress purposes quantity red sandstone rendered result rocks shaft smelting special scientific knowledge species specimens Staffordshire steam strata student substances success surface tion true truth unconformably various whilst zinc
Pàgina 80 - How charming is divine Philosophy! Not harsh and crabbed, as dull fools suppose, But musical as is Apollo's lute, And a perpetual feast of nectar'd sweets, Where no crude surfeit reigns.
Pàgina 47 - CommonSense is only our second-best guide — that the rules of Art, if judiciously framed, are always desirable when they can be had, is an assertion, for the truth of which I may appeal to the testimony of mankind in general ; which is so much the more valuable, inasmuch as it may be accounted the testimony of adversaries. For the generality have a strong predilection in...
Pàgina 28 - Is there any one so foolish," he asks, " as to believe that there are antipodes with their feet opposite to ours ; people who walk with their heels upward and their heads hanging down ? That there is a part of the world in which all things are topsy-turvy : where the trees grow with their branches downward, and where it rains, hails, and snows upward ? The idea of the roundness of the earth...
Pàgina 46 - Common-Sense is meant, I apprehend, (when the term is used with any distinct meaning,) an exercise of the judgment unaided by any Art or system of rules : such an exercise as we must necessarily employ in numberless cases of daily occurrence ; in which, having no established principles to guide us, — no line of procedure, as it were, distinctly chalked out, — we must needs act on the host extemporaneous conjectures we can form.
Pàgina 39 - that the clergy should engage in the search for the philosopher's stone, for since they could change bread and wine into the body and blood of Christ, they must also by the help of God succeed in transmuting the baser metals into gold.
Pàgina 132 - ... be readily obtained in various places, the patentee has mentioned a number of matters which may be substituted for them. The following are the materials that may be substituted for those which were employed in the preparation of the composition : — 1st class. Urine in general, from man and beast, in the proportion of two parts of the former to three of the latter; or two parts of bone-dust, macerated in half its weight of sulphuric acid, may be used instead of five parts of urine. 2nd, 3rd...
Pàgina 47 - Neither, again, would the architect recommend a reliance on common sense alone in building, nor the musician in music, to the neglect of those systems of rules, which, in their respective arts, have been deduced from scientific reasoning, aided by experience; and the induction might be extended to every department of practice. Since, therefore, each gives the...
Pàgina 17 - Devon would furnish about 1,340,000/., or more than one-half, leaving 1,257,000/. for the value of all the metals, with the exception of iron, raised in other parts of the United Kingdom. The two great metallic products of the district are copper and tin; of the former it yields one-third, and of the latter nine-tenths, of the whole supply of copper and tin furnished by the British Islands and all the countries of the continent of Europe.
Pàgina 43 - It would certainly," says Liebig, " be considered one of the greatest discoveries of the age if any one could succeed in condensing coal gas into a white, dry, solid, odourless substance, portable, and capable of being placed upon a candlestick or burned in a lamp.
Pàgina 43 - It would certainly be esteemed one of the greatest discoveries of the age," says he, " if any one could succeed in condensing coal-gas into a white, dry, solid, odourless substance, portable, and capable of being placed upon a candlestick or burned in a lamp.