Chemical News and Journal of Industrial Science, Volumer 63-64Chemical news office., 1891 |
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Side 3
... described an experiment to show that friction of smoke in a chimney is higher in a conical one when the widest end is used as inlet . Two small gas - flames on the same T - shaped gas - pipe , with very low pressure of the gas , gave me ...
... described an experiment to show that friction of smoke in a chimney is higher in a conical one when the widest end is used as inlet . Two small gas - flames on the same T - shaped gas - pipe , with very low pressure of the gas , gave me ...
Side 19
... described is but little shorter than some of the new methods , which it resembles , it has the advantage of very considerable accuracy . This method may be briefly described as follows : - Transfer three grms . of very finely powdered ...
... described is but little shorter than some of the new methods , which it resembles , it has the advantage of very considerable accuracy . This method may be briefly described as follows : - Transfer three grms . of very finely powdered ...
Side 20
... described by Crookes ( Fresenius's Zeitschrift , vi . , 431 ) , and the very small corrections thus found were tabulated and applied to all results . 38.46 98.84 Ether and alcohol 40'76 97.69 The proportion of lecithines to the total ...
... described by Crookes ( Fresenius's Zeitschrift , vi . , 431 ) , and the very small corrections thus found were tabulated and applied to all results . 38.46 98.84 Ether and alcohol 40'76 97.69 The proportion of lecithines to the total ...
Side 21
... described by Professor Cooke ( Proceedings of the American Academy of Arts and Sciences , xvii . , 17 ) , and , after being fused by means of a blowpipe directed down- wards , the silver was allowed to cool in a reducing flame . The ...
... described by Professor Cooke ( Proceedings of the American Academy of Arts and Sciences , xvii . , 17 ) , and , after being fused by means of a blowpipe directed down- wards , the silver was allowed to cool in a reducing flame . The ...
Side 24
... described . A Constant Water - Bath . - B . F. Davenport.- From the Journal of Anal . Chemistry . - S . J. Speak ( CHEMICAL NEWS ) mentions that a water - bath on the same principle was used by G. W. Slatter eight years ago . A Water ...
... described . A Constant Water - Bath . - B . F. Davenport.- From the Journal of Anal . Chemistry . - S . J. Speak ( CHEMICAL NEWS ) mentions that a water - bath on the same principle was used by G. W. Slatter eight years ago . A Water ...
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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.