Chemical News and Journal of Industrial Science, Volúmenes33-34Chemical news office., 1877 |
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Página 1
... Society of Telegraph En- gineerst on February 12th , 1873. Mr. Willoughby Smith announced the remarkable fact , that a bar of crystalline selenium , through which a current of electricity passes , has its conductivity increased 15 to ...
... Society of Telegraph En- gineerst on February 12th , 1873. Mr. Willoughby Smith announced the remarkable fact , that a bar of crystalline selenium , through which a current of electricity passes , has its conductivity increased 15 to ...
Página 13
... SOCIETY . order . The subject covers a large area , and is calculated to lead the investigator to the consideration of the most important chemical problems . " The memoirs of Dr. Hofmann in reference to the organic bases fall under ...
... SOCIETY . order . The subject covers a large area , and is calculated to lead the investigator to the consideration of the most important chemical problems . " The memoirs of Dr. Hofmann in reference to the organic bases fall under ...
Página 14
... Society , instead of waiting , as he had intended , till the research was complete , in consequence of the publication by M. Lamy ( who had been fortunate enough to meet with a comparatively fertile source of the new substance ) of a ...
... Society , instead of waiting , as he had intended , till the research was complete , in consequence of the publication by M. Lamy ( who had been fortunate enough to meet with a comparatively fertile source of the new substance ) of a ...
Página 19
... Society of Arts . Mr. Davenport's connection with the Society had lasted for thirty - three years , and it was in great part to his unceasing and zealous efforts that the present prospe- rity of the Institution is due . To very many of ...
... Society of Arts . Mr. Davenport's connection with the Society had lasted for thirty - three years , and it was in great part to his unceasing and zealous efforts that the present prospe- rity of the Institution is due . To very many of ...
Página 28
... Society ; the first would have reference to chemistry solely as a business , as a means of livelihood ; whilst the second looks on chemistry only as { CHEMICAL NEWS , Jan. 21 , 1876 . a science ; only duly qualified persons would have ...
... Society ; the first would have reference to chemistry solely as a business , as a means of livelihood ; whilst the second looks on chemistry only as { CHEMICAL NEWS , Jan. 21 , 1876 . a science ; only duly qualified persons would have ...
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acetic acetic acid action alcohol alizarin alkali alumina ammonia ammonium amount analysis aniline aniline-black anthracen apparatus atomic bilirubin biliverdin blue body boiling bromine calcium carbonic acid caustic cent Chemical Society chemistry chemists chlorate chloride colour compounds condensation containing copper crystallisation cyanide cyanogen decomposed decomposition dilute dissolved distilled dyeing electric employed ether evaporation examination experiments filter furnace gases give glass grms heat hydrate hydrochloric acid hydrogen Improvements inches insoluble iodine iron kilos light lime liquid litre London manganese manufacture matter means mercury metal meteorites method mineral mixture nitrate nitric acid nitrogen observed obtained oxide oxidised oxygen paper patent phosphate platinum potash potassium precipitate present produced Prof quantity radiometer reaction researches residue Royal salt sample selenium silver soda sodium soluble solution substance sugar sulphate sulphide sulphuric acid temperature tion tube vanadium vapour whilst yellow yield zinc
Pasajes populares
Página 131 - ... ultra-red, and the minimum in the ultra-violet. Taking the maximum at 100, the following are the mechanical values of the different colours of the spectrum : — Ultra-red 100 Extreme red 85...
Página 228 - ... an error. He also considered that in a lake of so complicated a form as that of Geneva observations would be required at at least ten different points, and a complete solution of such a case would be analogous to the study of magnetic intensity in the manner suggested by Gauss. NOTICES OF BOOKS. Science made Easy : A Series of Familiar Lectures on the Elements of Scientific Knowledge most required in Daily bife.
Página 265 - TATE in the Chair. The following Candidates were elected Members of the Society : — Horatio Waddington, Esq., late Fellow of Trinity College, Cambridge.
Página 87 - A DICTIONARY of CHEMISTRY and the Allied Branches of other Sciences. By HENRY WATTS, FRS assisted by eminent Contributors.
Página 1 - Royal will and pleasure, that no resolution, or bye-law, shall on any account or pretence whatsoever be made by the said body politic and corporate in opposition to the general scope, true intent, and meaning of this our Charter, or the laws or statutes of our Realm...
Página 29 - FRS, president, in the chair. — The following candidates were elected members of the Society : — Mr.
Página 241 - Trade may by licence under the hand of one of the secretaries or assistant secretaries, direct such association to be registered with limited liability, without the addition of the word limited...
Página 121 - The variations in the luminosity of a " standard " candle will cease to be of importance. Any candle may be taken ; and if it be placed at such a distance from the apparatus that it will give a uniform deflection, say of 100 divisions, the standard can be reproduced at any subsequent time ; and the burning of the candle may be tested during the photometric experiments by taking the deflection it causes from time to time, and altering its distance, if needed, to keep the deflection at 100 divisions.
Página 104 - President, in the Chair. AFTER the minutes of the previous meeting had been read and confirmed, and the names of the visitors announced, the following names were read for the first time : — Messrs.
Página 81 - ... limits what it can ; a still more watery one will make the brain dropsical, and produce all the conditions of mechanical pressure on the brain. All these processes are the necessary consequences of the affinities of the phosphorised substances, and, these being known, the phenomena could be predicted, if they were not sufficiently known as phenomena, though hitherto destitute of an explanation. Thus the so-called brain-fungus, the continued protrusion of brain-matter through apertures of the...