System of Theoretical and Practical Chemistry ...Kimber and Conrad, no. 93, Market-street., 1814 |
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Seite vi
... observe that I have done more than borrow from others . I have corrected errors which are found even in the works of modern authors of eminence ; particularly in respect to the practical part of many processes . I have facilitated many ...
... observe that I have done more than borrow from others . I have corrected errors which are found even in the works of modern authors of eminence ; particularly in respect to the practical part of many processes . I have facilitated many ...
Seite xi
... observations II . Theory of Burnet III . Theory of Woodward 14 1 17 IX . Theory of Buffon IV . Theory of Whiston V. Theory of Hutchinson VI . Theory of Moro VII . Theory of Le Cat VIII . Theory of Maillet X. Theory of Raspe XI . Theory ...
... observations II . Theory of Burnet III . Theory of Woodward 14 1 17 IX . Theory of Buffon IV . Theory of Whiston V. Theory of Hutchinson VI . Theory of Moro VII . Theory of Le Cat VIII . Theory of Maillet X. Theory of Raspe XI . Theory ...
Seite 1
... observation or operative experiment . It either observes the processes which are incessantly taking place in the ... observe how water is converted into ice , and ice into water ; how metallic substances lose their lustre in VOL . I. 1 ...
... observation or operative experiment . It either observes the processes which are incessantly taking place in the ... observe how water is converted into ice , and ice into water ; how metallic substances lose their lustre in VOL . I. 1 ...
Seite 2
... observation . When , again , we kindle a fire , that we may see its action upon some combustible or incombus- tible body ; when we immerse a solid into a fluid , that we may learn whether the solid will be dissolved or not , in ...
... observation . When , again , we kindle a fire , that we may see its action upon some combustible or incombus- tible body ; when we immerse a solid into a fluid , that we may learn whether the solid will be dissolved or not , in ...
Seite 3
... observations . Its basis is EXPERIENCE : from this , by regular con- clusions , it deduces a THEORY , and connects a series of accurately established facts into a certain order , called a SYSTEM . It follows from this that the evidence ...
... observations . Its basis is EXPERIENCE : from this , by regular con- clusions , it deduces a THEORY , and connects a series of accurately established facts into a certain order , called a SYSTEM . It follows from this that the evidence ...
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absorbed action alkali ammonia animals ardent spirit atmospheric air barytes becomes bismuth bodies boiling bottle burn called caloric carbonated hydrogen gas carbonic acid gas charcoal chemical affinity cold colour combination combustion compound contained corpuscular attraction crucible decomposed decomposition degree diamond disengaged dissolved distance earth effect emitted equal EXPERIMENT exposed filled flame Florence flask fluid formed gaseous oxyd gases glass tube globe gradually heat Hence ignited inch iron lime liquid luminous magnesia mass means melted mercury metals mixed mixture muriatic acid gas nature nitrate nitric acid nitrogen nitrogen gas nitrous gas obtained oxygen gas oxygenized muriatic acid particles pass philosophers phosphorated hydrogen gas phosphoric acid phosphorus Phosphuret piece potash produced properties proportion RATIONALE....The rays of light retort SECT soda solid solution specific gravity strontia substances sulphate sulphurated hydrogen gas sulphuret sulphuric acid surface takes place temperature theory thermometer tion unites vapour vegetable vessel
Beliebte Passagen
Seite ii - An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned." And also to the act, entitled " An Act supplementary to an Act, entitled, " An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and...
Seite 160 - When a white surface, covered with solution of nitrate of silver, is placed behind a painting on glass exposed to the solar light, the rays transmitted through the differently painted surfaces produce distinct tints of brown or black, sensibly differing in intensity according to the shades of the .picture, and where the light is unaltered, the color of the nitrate becomes deepest.
Seite 72 - ... the glasses and stir it, it will be changed into a crimson ; put a few drops of fixed alkali dissolved into the other glass, and when you stir it, it will change to green. If you drop slowly into the green liquor, from the side of the glass, a few drops of acid of vitriol, you will perceive crimson at the bottom^ purple in the middle, and green at the top ; and by adding a little fixed alkali dissolved to the other glass, the same colours will appear in different order. Another.
Seite 17 - Essays to-, wards a Natural History of the Earth, and terrestrial bodies. Though he possessed much more knowledge of minerals than his predecessor, and on this account had greatly the advantage of him, he produced a work far less ingenious and interesting. He also proceeded on the supposition of the Mosaic history being true, and ascribed the present aspect of our globe to the influence of the general deluge. He supposed that all the substances of which the earth is composed were once in a state...
Seite 400 - I had designed appears to be superfluous, as all the facts that I had observed are but particular instances of the more general observation of Mr. Dalton, that in all cases the simple elements of bodies are disposed to unite atom to atom singly, or, if either is in excess, it exceeds by a ratio to be expressed by some simple multiple of the number of its atoms.
Seite 124 - Spain, a kind of earthen jars, called buxaros, is used, the earth of which is so porous, being only half-baked, that the outside is kept moist by the water which filters through it ; and", though placed in the sun, the water in the jar becomes as cold as ice. It is a common practice in China, to cool wine or other liquors by wrapping a wet cloth round the bottle, and hanging it up in the sun. The water in the cloth evaporates, and thus cold is produced. Ice may be produced at any time by the evaporation...
Seite 55 - ... largely to this change ; but the instances of the abuse of spirits are so innumerable, and those of this surprising combustion are so extremely rare, that very little satisfaction can be obtained from this explanation.
Seite 161 - When the solar rays are passed through a print and thrown upon prepared paper, the unshaded parts are slowly copied ; but the lights transmitted by the shaded parts, are seldom so definite as to form a distinct resemblance of them by producing different intensities of colour. The images formed by means of a camera obscura, have been found to be too faint to produce, in any moderate time, an effect upon the nitrate of silver.
Seite 190 - ... water. To the elevated extremity lute another wide glass tube, filled with small bits of sulphur, and secured at the further end, so that the sulphur may be pushed forward by means of a wire, without allowing the inside of the tube to communicate with the external air. Heat the porcelain tube, and, consequently, the charcoal which it contains, to redness, and continue the heat, till...
Seite 160 - ... and soap, and it is in a high degree permanent. The copy of a painting or the profile, immediately after being taken, must be kept in an obscure place ; it may, indeed, be examined in the shade, but in this case the exposure should be only for a few minutes : by the light of candles or lamps, as commonly employed, it is not sensibly affected. No attempts that have been made to prevent the uncoloured parts of the copy or profile from being acted upon by light, have as yet been successful.