the chemist; a monthly journal of chemical philosophy and of chemistry applied to the arts, manufactures, agriculture, and medicine, and record of pharmacy. |
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Pagina 9
... gold workings in Califor- nia ; a portion of this collection has been sent to the Ecole des Mines , and I have had an op- portunity of examining it : it comprises : - * Buchner's Repertorium . † Comptes Rendus , No. 8 , Aug. 20 , 1849 ...
... gold workings in Califor- nia ; a portion of this collection has been sent to the Ecole des Mines , and I have had an op- portunity of examining it : it comprises : - * Buchner's Repertorium . † Comptes Rendus , No. 8 , Aug. 20 , 1849 ...
Pagina 10
... gold are distinctly visible . 3rd . Pieces of quartz and fragments of rocks collected in the alluvion which con- stitutes this valley . 4th . Two pieces of native gold . 5th . Lastly , bracteæ of gold from three different parts of the ...
... gold are distinctly visible . 3rd . Pieces of quartz and fragments of rocks collected in the alluvion which con- stitutes this valley . 4th . Two pieces of native gold . 5th . Lastly , bracteæ of gold from three different parts of the ...
Pagina 11
... Gold * .. 16.32 The difference which exists in the size and form of the grains , and that presented by the specific gravity of each of the elements of which the auriferous sands of California are composed , should cause these ...
... Gold * .. 16.32 The difference which exists in the size and form of the grains , and that presented by the specific gravity of each of the elements of which the auriferous sands of California are composed , should cause these ...
Pagina 12
... gold .... 4.65 100.00 Among the crystals of titaniferous oxide of iron and specular iron , a certain number have preserved easily appreciable forms . They have , in general , much lustre : the crystals of zircon , for the most part very ...
... gold .... 4.65 100.00 Among the crystals of titaniferous oxide of iron and specular iron , a certain number have preserved easily appreciable forms . They have , in general , much lustre : the crystals of zircon , for the most part very ...
Pagina 53
... gold , be placed over one another , then put in communication , by means of a galvanic circuit , a charge of elec- tricity is always obtained ; the platinum is negative , and the gold positive . On sub- mitting a plate of zinc to the ...
... gold , be placed over one another , then put in communication , by means of a galvanic circuit , a charge of elec- tricity is always obtained ; the platinum is negative , and the gold positive . On sub- mitting a plate of zinc to the ...
Veelvoorkomende woorden en zinsdelen
acetic action albumen alcohol alkaline alloy alumina ammonia analysis animal appears baryta battery bodies boiling carbonate of lime carbonic acid cent charcoal chemical chemists chloric acid chloride chloride of sodium chloroform color combination composition compound contained copper crystallised crystals decomposed decomposition disengagement dissolved distilled dried effects eggs electricity employed ether evaporation experiments extract fatty matter filtered fused give glass gold grammes heat humus hydrochloric acid hydrogen insoluble iodine liquid liquor magnesia manganese manufacture manure means ment metallic mineral mixed mixture nitrate nitric acid nitrogen obtained odor operation oxide oxide of iron oxygen phosphate phosphoric phosphoric acid plant platinum portion potassa potassium precipitate prepared present produced proportion quinquina residue salt santonine Silica silver small quantity soda soluble solution starch substances sugar sulphate sulphuret sulphuric acid surface tained temperature tion tube vegetable vessel washed whilst yellow zinc
Populaire passages
Pagina 354 - THE EXHIBITION of 1851 is to give us a true test and a living picture of the point of development at which the whole of mankind has arrived in this great task, and a new starting point from which all nations will be able to direct their further exertions.
Pagina 354 - So man is approaching a more complete fulfilment of that great and sacred mission which he has to perform in this world. His reason being created after the image of God, he has to use it to discover the laws by which the Almighty governs His creation, and, by making these laws his standard of action, to conquer nature to his use ; himself a divine instrument.
Pagina 319 - ... now become hard and horny, we obtain an equal weight of the most aromatic soup, of such strength as cannot be obtained, even by boiling for hours, from a piece of flesh. When mixed with salt and the other usual additions, by which soup is usually seasoned, and tinged somewhat darker by means of roasted onions or burnt sugar, it forms the very best soup which can in any way be obtained from 1 Ib. of flesh.
Pagina 380 - CYCLOPEDIA OF AGRICULTURE, PRACTICAL AND SCIENTIFIC; in which the Theory, the Art, and the Business of Farming, m all their departments, are thoroughly and practically treated.
Pagina 75 - ... put the mucky liquid to stand, so that they may, after it has rested for a day or two, skim the fluid from the solid particles of filth, pollution, and disease.
Pagina 345 - ... and liberates the oxygen in its gaseous state to sustain the healthy functions of the animal life, at the same time that it feeds on the rejected matter which has fulfilled its purposes in the nourishment of the fish and snail, and preserves the water constantly in a clean and healthy condition.
Pagina 202 - It was further shown that chemical decompositions may be produced by liquid diffusion ; the constituents of a double salt of so much stability as common alum being separated, and the sulphate of potash diffusing in the largest proportion. In fact the diffusive force is one of great energy, and quite as capable of breaking up compounds as the unequal volatility of their constituents.
Pagina 354 - ... we are living at a period of most wonderful transition, which tends rapidly to the accomplishment of that great end to which, indeed, all history points — the realization of the unity of mankind.
Pagina 354 - Not a unity which breaks down the limits, and levels the peculiar characteristics of the different nations of the earth, but rather a unity the result and product of those very national varieties and antagonistic qualities. The distances which separated the different nations and parts of the globe are...
Pagina 354 - Whilst formerly the greatest mental energies strove at universal knowledge, and that knowledge was confined to the few, now they are directed on specialities, and in these, again, even to the minutest points...