Chemical News and Journal of Industrial Science, Bände 17-18Chemical news office., 1868 |
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Häufige Begriffe und Wortgruppen
acetate action alcohol alkaline ammonia amount analysis aniline apparatus appear atoms body boiling carbonic acid cent charcoal chemical chemistry chemists chloric acid chloride coal colouring matter combustion composition compound containing copper crucible crystallised crystals decomposed decomposition dilute dissolved distilled employed enclosure estimation ether evaporated examination experiments extract filter flame flask fluid fluoride gases give glass Glycerine grammes heat hydrate hydrochloric acid hydrogen insoluble iodide iodine iron lecture light lime liquid London magnesia manufacture mercury metal method methyl methylated spirit mineral mixture nitrate nitric acid nitrogen nitroglycerine observed obtained organic matter oxide oxidised oxygen paper permanganate phosphate phosphoric acid phosphorus platinum potash potassium precipitate present produced Professor pure pyrites quantity reaction residue salt silica silver soda sodium soluble solution steel substance sulphate sulphide sulphocyanide sulphuric acid surface temperature thallium tion tube vapour vessel washed zinc
Beliebte Passagen
Seite 69 - President, in the chair. The minutes of the preceding meeting were read and confirmed, a list of donations was read, and the thanks of the meeting were voted to the donors.
Seite 26 - Ludlow, Devonian, and Carboniferous Rocks. SECONDARY FOSSILS, from the Trias, Lias, Oolite, Wealden, and Cretaceous Groups. TERTIARY FOSSILS, from the Woolwich, Barton, and Bracklesham Beds, London Clay, Crag, &c. In the more expensive Collections some of the Specimens are rare, and all more select.
Seite 38 - Guineas each, with every requisite to assist those commencing the study of this interesting science, a knowledge of which affords so much pleasure to the traveller in all parts of the world. * A collection for Five Guineas which will illustrate the recent works on Geology by Ansted, Buckland.
Seite 270 - This index of refraction is still more materially affected when a body passes from the solid to the liquid, or from the liquid to the gaseous condition ; a...
Seite 289 - For the same quantity of heat evolved, the resulting temperature varies with the mass and kind of matter heated, and with the rapid or gradual evolution of the heat. When the evolution of heat is instantaneous, the resulting temperature may be calculated from the quantity of heat evolved, and the mass and specific heat, &c., of the matter heated. By a unit of heat is meant the quantity of heat necessary to raise the temperature of one kilogramme of water one degree centigrade, or more accurately...
Seite 52 - We have in fact the geyser in its youth, manhood, old age, and death, here presented to us. In its youth, as a simple thermal spring ; in its manhood, as the eruptive column ; in its old age, as the tranquil Laug ; while its death is recorded by the ruined shaft and mound which testify the fact of its once active existence.
Seite 199 - For the purpose of obtaining a rough approximation of the number of spores or germs of organic matter contained in the fluid received from Dr. Smith, I measured a quantity by the pipette, and found it contained 150 drops of the size used in each examination.
Seite 137 - Trivalent or Triad class of elementary substances, comprising nitrogen, phosphorus, boron, arsenic, antimony, and bismuth. It is true that we are still but imperfectly acquainted with many of the characters of vanadium ; but the more its nature is studied...
Seite 130 - Fraser have discovered that the toxic properties of brucia, thebaia, and codeia are immensely diminished by the addition of methyl ; and that the bodies produced, instead of being, as all three of these alkaloids are, strongly convulsent, possess, on the contrary, the physiological action of curare. Morphia, as is well known, possesses both soporific and convulsent properties ; its toxic action is much diminished by the addition of iodide of methyl ; its convulsent action is destroyed, but its soporific...
Seite 270 - ... may be contained in the miscellaneous out-flowings of the population. Excrement-sodden earth, excrement-reeking air, excrement-tainted water, these are for us the causes of cholera. That they respectively act only in so far as the excrement is cholera-excrement, and that cholera-excrement again only acts in so far as it contains certain microscopical fungi, may be the truest of all true propositions; but whatever be their abstract truth, their separate application is impossible. Nowhere out of...