Chemical News and Journal of Industrial Science, Volúmenes21-22Chemical news office, 1870 |
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Página 12
... length , of which the following is a condensed abstract : -I . Heat the material to be tested with alcohol of So per cent and a few drops of hydrochlorie acid . A. The material is reddened , and yields a red liquor . Blue from dye woods ...
... length , of which the following is a condensed abstract : -I . Heat the material to be tested with alcohol of So per cent and a few drops of hydrochlorie acid . A. The material is reddened , and yields a red liquor . Blue from dye woods ...
Página 20
... length in Dr. Beale's " How to Work with the Micro- scope , " 4th edition , pp . 229 to 279 . Fortunately , the other processes used in making representations of objects are within reach of the majority of microscopists . The apparatus ...
... length in Dr. Beale's " How to Work with the Micro- scope , " 4th edition , pp . 229 to 279 . Fortunately , the other processes used in making representations of objects are within reach of the majority of microscopists . The apparatus ...
Página 21
... length of IO centimetres . It is a mixture of dextrogyrous hydro- carbon with an inactive oxygenated principle , and also contains small quantities of a body which is ap- To the Editor of the Chemical News . parently a phenol , and ...
... length of IO centimetres . It is a mixture of dextrogyrous hydro- carbon with an inactive oxygenated principle , and also contains small quantities of a body which is ap- To the Editor of the Chemical News . parently a phenol , and ...
Página 22
... length , in this paper , the action of a solution of monosulphide of sodium ( 1 part of dry salt in 10 of water ) upon a great number of metallic sulphides , selenides , tellurides , and antimoniosulphides ; the conclusion arrived at is ...
... length , in this paper , the action of a solution of monosulphide of sodium ( 1 part of dry salt in 10 of water ) upon a great number of metallic sulphides , selenides , tellurides , and antimoniosulphides ; the conclusion arrived at is ...
Página 31
... length to its own width , which may be an inch or more . This instru- ment can be obtained at the better class of tool- shops . Some microscopists have endeavoured , with more or less success , to make drawings from the image of the ...
... length to its own width , which may be an inch or more . This instru- ment can be obtained at the better class of tool- shops . Some microscopists have endeavoured , with more or less success , to make drawings from the image of the ...
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Términos y frases comunes
acetic acid action alcohol alizarine alkalies alluded alumina ammonia ammonium amount analysis aniline anthracene apparatus atoms barium benzol boiling bromine calcium carbonic acid caustic cent CHEMICAL chemists chloride colour compounds contains the following copper crystalline crystals decomposed decomposition dilute dissolved distilled electricity ether evaporated experiments filter fluid following original papers formula fusing glass heat hydrate hydrochloric acid hydrogen inch insoluble iodine iron lead length lime liquid madder magnesia magnetic manganese manufacture matter memoir mercury metal method microscope mineral mixture nitrate nitric acid nitrobenzol nitrogen number contains observed obtained oxalic acid oxide oxidised oxygen phosphate phosphoric acid platinum potash potassa potassium precipitate prepared present produced pure quantity reaction relating to chemistry salt sample sciences silicates silver soda sodium soil soluble solution substance sugar sulphate sulphide sulphuric acid temperature tion tube vapour volume washed weight wire yields zinc
Pasajes populares
Página 48 - Ganot's Elementary Treatise on Physics, Experimental and Applied, for the use of Colleges and Schools. Translated and edited by E. ATKINSON, FCS Seventh Edition, with 4 Coloured Plates and 758 Woodcuts. Post 8vo. 15.?.
Página 164 - ... the oxidation of the organic matter in sewage proceeds with extreme slowness, even when the sewage is mixed with a large volume of unpolluted water, and that it is impossible to say how far such water must flow before the sewage matter becomes thoroughly oxidised.
Página 32 - A university is not closely concerned with the applications of knowledge, until its general education branches into professional. Poetry and philosophy and science do indeed conspire to promote the material welfare of mankind; but science no more than poetry finds its best warrant in its utility. Truth and right are above utility in all realms of thought and action.
Página 101 - ... its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering striae throughout its entire mass. At temperatures above 88°, no apparent liquefaction of carbonic acid or separation into two distinct forms of matter could be effected, even when- a pressure of 300 or 400 atmospheres was applied. Nitrous oxide gave analogous results...
Página 112 - In this process its volume will steadily diminish as the pressure augments, and no sudden diminution of volume, without the application of external pressure will occur at any stage of it. When the full pressure has been applied, let the temperature be allowed to fall till the carbonic acid has reached the ordinary temperature of the atmosphere.
Página 271 - ... their having previously undergone fusion. " When the communication between the points positively and negatively electrified was made in air rarefied in the receiver of the airpump, the distance at which the discharge took place increased as the exhaustion was made, and when the atmosphere in the vessel supported only one-fourth of an inch of mercury in the barometrical gauge, the...
Página 32 - University would have scientific studies in school and college and professional school develop and discipline those powers of the mind by which science has been created and is daily nourished — the powers of observation, the inductive faculty, the sober imagination, the sincere and proportionate judgment.
Página 151 - Galileo. — THE PRIVATE LIFE OF GALILEO. Compiled principally from his Correspondence and that of his eldest daughter, Sister Maria Celeste, Nun in the Franciscan Convent of S.
Página 112 - ... the process would lead to the conjecture that liquefaction had actually taken place, although optical tests carefully applied failed at any time to discover the presence of a liquid in contact with a gas. But against this view it may be urged with great force, that the fact of additional pressure being always required for a further diminution of volume, is opposed to the known laws which hold in the change of bodies from the gaseous to the liquid state. Besides, the higher the temperature at...
Página 161 - ... of ordinary light. I have spoken to you also, I think, of the argument deducible from the contact electricity of metals. This, I now find, proves a limit to the dimensions of the molecules in metals quite corresponding to that established for transparent solids and liquids by the dynamics of dispersion. In experiments made about ten years ago, of which a slight sketch is published...