The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts, Band 9A. and C. Black, 1830 |
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Seite 155 - That 3. That the Council of the Society consist of a President, four Vice-Presidents, a Treasurer, two Secretaries, and twenty-one other Members, to conduct the affairs of the Society. 4. That the election of the said Council and Officers be annual. 5. That the office of President be not held by the same individual for a longer period than two consecutive years, but that he be eligible for re-election after the lapse of one year. 6. That one of the four Vice-Presidents go out annually; he being eligible,...
Seite 389 - ... were distinctly visible. Day broke very slowly, and the sun rose of a fiery and threatening aspect. Rain followed. Captain Bonnycastle caused a bucket of this fiery water to be drawn up ; it was one mass of light, when stirred by the hand, and not in sparks, as usual, but in actual coruscations.
Seite 375 - He ascribes the diminution of sound during the day to the presence of the sun, which influences the propagation and intensity of sound, by opposing to them currents of air of different density, and partial undulations of the atmosphere, produced by unequal heating of different parts of the ground.
Seite 404 - For certain improvements in preparing or finishing piece goods made from wool, silk, or other fibrous substances.
Seite 232 - Another portion of the same infusion of galls had solution of isinglass added to it until it no longer produced a precipitate ; by employing the sulphate of iron, a black compound was produced, which, although paler than that formed from the entire fluid, appeared to be a perfect and durable ink. Lastly, a portion of the infusion of galls was kept for some time at the boiling temperature, by...
Seite 196 - Ib. of coke per cubic foot of water per hour was consumed; and the evaporation of a cubic foot of water per hour being generally considered the measure of a horse power, the conclusion is, that the boiler was a forty horse boiler, and that the quantity of fuel requisite to work it is 2| cwt.
Seite 153 - Society might therefore be formed under the name of The Geographical Society of London : That the interest excited by this department of science is universally felt ; that its advantages are of the first importance to mankind in general, and paramount to the welfare of a maritime nation, like Great Britain, with its numerous and extensive foreign possessions : That its decided...
Seite 153 - That although there is a vast store of geographical information existing in Great Britain, yet it is so scattered and dispersed, either in large books that are not generally accessible, or in the bureaus of the public departments, or in the possession of private individuals, as to be nearly unavailable to the public.
Seite 394 - The quantity of iron annually manufactured in Wales has been calculated at about 270,000 tons. Of this quantity a proportion of about three-fourths is made into bars, and one-fourth sold as pigs and castings. The quantity of coal required for its manufacture on the average...
Seite 232 - ... loss of colour, the black first changing to brown, and at length almost entirely disappearing. Besides these, there are objects of minor importance to be attended to in the formation of ink. Its consistence should be such as to enable it to flow easily from the pen, without, on the one hand, its being so liquid as to blur the paper, or, on the other, so adhesive as to clog the pen, and to be long in drying. The shade of colour is not to be disregarded; a black, approaching to blue, is more agreeable...