Chemical News and Journal of Industrial Science, Volumer 63-64Chemical news office., 1891 |
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Side 2
... heat Victor Meyer's vapour - density apparatus . For brevity we have called it a " Meyer " tube . The outside of the tube is thickly padded with asbestos wool , with the exception of the lower half of the bulb , and of a short length of ...
... heat Victor Meyer's vapour - density apparatus . For brevity we have called it a " Meyer " tube . The outside of the tube is thickly padded with asbestos wool , with the exception of the lower half of the bulb , and of a short length of ...
Side 3
... heat emitted by a burning match is generally sufficient to determine com bination between the gases ; and where the heat evolved by the combination is sufficient to raise the gases or vapour to incandescence , the phenomenon of flame is ...
... heat emitted by a burning match is generally sufficient to determine com bination between the gases ; and where the heat evolved by the combination is sufficient to raise the gases or vapour to incandescence , the phenomenon of flame is ...
Side 4
... heat of the flame into simpler compounds until in the luminous zone of the flame they are broken down into carbon and methane , and it is the carbon in excessively minute particles which at the moment of liberation is heated to ...
... heat of the flame into simpler compounds until in the luminous zone of the flame they are broken down into carbon and methane , and it is the carbon in excessively minute particles which at the moment of liberation is heated to ...
Side 9
... heat , light , electricity , gases , & c . , on microbia . is found that certain lower organic forms , both animal and vegetal , can retain their vitality for years ; in one case given by Mr. W. Carruthers , F.R.S. , of the British ...
... heat , light , electricity , gases , & c . , on microbia . is found that certain lower organic forms , both animal and vegetal , can retain their vitality for years ; in one case given by Mr. W. Carruthers , F.R.S. , of the British ...
Side 11
... heat with 10-15 c.c. of hydrochloric acid diluted with water . The solution is evaporated to dryness , and the residue is kept at 100 ° for one hour , so that the silica may become entirely insoluble in acids . The residue is then taken ...
... heat with 10-15 c.c. of hydrochloric acid diluted with water . The solution is evaporated to dryness , and the residue is kept at 100 ° for one hour , so that the silica may become entirely insoluble in acids . The residue is then taken ...
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Populære avsnitt
Side 256 - The Metallurgy of Gold. A Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, including the Processes of Concentration and Chlorination, and the Assaying, Melting and Refining of Gold.
Side 69 - No English text-book at all approaches this in the COMPLETENESS with which the most modern views on the subject are dealt with. Professor Austen's volume will be INVALUABLE, not only to the student, but also to those whose knowledge of the art is far advanced.
Side 33 - The Art of Perfumery, and the Methods of Obtaining the Odours of Plants ; the Growth and general Flower Farm System of Raising Fragrant Herbs ; with Instructions for the Manufacture of Perfumes &c.
Side 74 - Committee of Revision and Publication of the Pharmacopoeia of the United States.
Side 4 - Coal-Gas, delivered in March, 1867, and printed in the ' Journal of Gas Lighting,' he considered that incandescent particles of carbon are not the source of light in gas and candle flames, but that the luminosity of these flames is due to radiations from dense, but transparent hydrocarbon vapours. As a further generalization from the...
Side 9 - SYSTEMATIC HANDBOOK OF VOLUMETRIC ANALYSIS ; or, the Quantitative Estimation, of Chemical Substances by Measure, applied to Liquids, Solids, and Gases.
Side 273 - There was no actual instruction ; I received from each individual every morning a report upon what he had done on the previous day, as well as his views on what he was engaged upon. I approved or made my criticisms.
Side 123 - ... reflected from a concave mirror through a foggy atmosphere. Green Phosphorescent Light of Molecular Impact. — At very high exhaustions the dark space becomes so large that it fills the tube. Careful scrutiny still shows the presence of the dark violet focus; and the part of the glass on which fall the rays diverging from this focus shows a sharply defined spot of greenish-yellow light.
Side 53 - A given space contains millions of millions of molecules in rapid movement in all directions, each molecule having millions of encounters in a second. In such a case, the length of the mean free path of the molecules is exceedingly small compared with the dimensions of the containing vessel, and the properties which constitute the ordinary gaseous state of matter, which depend upon constant collisions, are observed. What, then, are these molecules ? Take a single lone molecule in space.
Side 32 - WANKLYN.— MILK ANALYSIS ; a Practical Treatise on the Examination of Milk and its Derivatives, Cream, Butter, and Cheese. By JA Wanklyn, MRCS, &c.