Chemical News and Journal of Physical Science, Bände 1-2W. A. Townsend and Adams, 1867 |
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acetic action alcohol alkali ammonia amount analysis aniline apparatus appears atmosphere atoms benzol blue bodies boiling bromine calcium carbonic acid cent charcoal Chem chemical chemistry chemists chloride coal coal tar colour combination composition compound containing copper corresponding crystallised crystals cupellation decomposed decomposition dilute dissolved distilled enclosure ether ethylic evaporated Exhibition experiments fact furnace gases give glass grains grammes heat hydrate hydrochloric acid hydrogen insoluble iron light lime lines liquid litre manganese manufacture matter means ments metal method mixture molecules naphtha nitrate nitric acid nitrogen observed obtained ordinary oxide oxidised oxygen paper Paris phosphoric acid platinum portion potash precipitate present produced Professor pure quantity reaction sal ammoniac salt scientific silicate silicium silver soda sodium soluble solution specific gravity spectra spectrum steam substances sulphate sulphide sulphocyanide sulphuric acid surface symbol temperature thallium tion tube vapour weight
Beliebte Passagen
Seite 3 - ... 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 : And that if any such rule or bye-law shall be made, the same shall be absolutely null and void to all intents, effects, constructions, and purposes whatsoever.
Seite 14 - ... effects of season and manuring on the composition of both the grain and the straw during twenty years of the experimental growth. The particulars of composition given are — the percentages of dry substance, of mineral matter, and of nitrogen, and the constituents of the ash of both grain and...
Seite 60 - Lenarto has no doubt come from such an atmosphere, in which hydrogen greatly prevailed. This meteorite may be looked upon as holding imprisoned within it, and bearing to us, the hydrogen of the stars.
Seite 175 - I have long entertained the opinion that in virtue of the better education provided by continental nations, England must one day, and that no distant one, find herself outstripped by those nations, both in the arts of peace and war.
Seite 83 - The gradual removal, in the form of carbonate of lime, of the carbonic acid from the primeval atmosphere, has been connected with great changes in the organic life of the globe. The air was doubtless at first unfit for the respiration of warm-blooded animals, and we find the higher forms of life coming gradually into existence as we approach the present period of a purer air.
Seite 84 - This, being more soluble than the gypsum, is not always now found associated with it; but we have indirect evidence that it was formed and subsequently carried away, in the case of many gypsum deposits, whose thickness indicates a long continuance of the process under conditions much more perfect and complete than we can attain under our present atmosphere. While studying this reaction I was led to inquire whether the carbonic acid of the earlier periods might not have...
Seite 276 - I could put into words something of the image which the name of Faraday always suggests to my mind. Kindliness and unselfishness of disposition ; clearness and singleness of purpose ; brevity, simplicity, and directness; sympathy with his audience or his friend; perfect natural tact and good taste ; thorough cultivation ; — all these he had, each to a rare degree ; and their influence pervaded his language and manner, whether in conversation or lecture. But all these combined made only a part of...
Seite 82 - Calculations based on the amount of light and heat radiated from the sun show that the temperature which reigns at its surface is so great that we can hardly form an adequate idea of it. Of the chemical relations of such intensely heated matter, modern chemistry has made known to us some curious facts, which help to throw light on the constitution and luminosity of the sun.
Seite 249 - That the universities and colleges be invited to assist in the introduction of scientific education by making natural science a subject of examination, either at matriculation, or at an early period of a university career. 6. That the importance of appointing lecturers in science, and offering entrance scholarships, exhibitions, and fellowships for the encouragement of scientific attainments, be represented to the authorities of the colleges.
Seite 57 - ... substances, some particles transparent, others white and red. It contains also a number of curious-looking objects, which vary considerably in size and colour; the majority of these bodies are spherical, and when separated from the irregularly shaped particles forming the bulk...