Proceedings of the Royal Society of London, Volume 14

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Taylor & Francis, 1865
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Page 109 - Admiralty Manual for ascertaining and applying the deviations of the compass caused by the iron in a ship.
Page 34 - Trapezium, forming the square front of the head, is shown with 18-inch reflector broken up into masses, whose mottled and curdling light evidently indicates by a sort of granular texture its consisting of stars; and when examined under the great light of Lord Rosse's reflector or the exquisite defining power of the great achromatic at Cambridge, US, is evidently perceived to consist of clustering stars. There can therefore be little doubt as to the whole consisting of stars, too minute to be discerned...
Page 503 - Washington in 1843 he presented papers, verbal communications, letters from foreign correspondents and observatories, proposals from the Royal Society of London and the British Association for the Advancement of Science in relation to Magnetic Observatories in the United States, at many meetings.
Page 498 - SIR, I AM commanded by the Lords Commissioners of Her Majesty's Treasury to acquaint you that, the...
Page 538 - I am directed by the Lords of the Committee of Privy Council for Trade to acknowledge the receipt of your letter of the 10th instant, with the inclosures from Messrs.
Page 485 - On the Means adopted in the British Colonial Magnetic Observatories for determining the Absolute Values, Secular Change, and Annual Variation of the Terrestrial Magnetic Force. By LieutenantColonel Edward Sabine, FRS, &c.
Page 35 - Trapezii. Other portions of the nebula were then brought successively upon the slit ; but throughout the whole of those portions of the nebula which are sufficiently bright for this method of observation the spectrum remained unchanged, and consisted of the three bright lines only. The whole of this Great Nebula, as far as it lies within the power of my instrument, emits light which is identical in its characters ; the light from one part differs from the light of another in intensity alone.
Page 454 - ... which yield from 1.5 to 2 per cent., or from benzal chloride, according to the reaction given. Pure benzoic aldehyde is a thin, colorless liquid, of great refractive power, and possesses a characteristic pleasant odor. It boils at 179° and has a specific gravity of 1.05. It is only very sparingly soluble in water, but miscible in all proportions with alcohol and ether, and is precipitated therefrom on addition of water. Exposed to the air, it rapidly oxidizes and is converted into crystalline...
Page 38 - Of these, the former are distinguished by that ruddy colour which characterizes the light of this planet (which always appears red and fiery), and indicates, no doubt, an ochrey tinge in the general soil, like what the red sandstone districts on the Earth may possibly offer to the inhabitants of Mars, only more decided.
Page 32 - Is the umhra of a spot nearer the sun's centre than the penumbra, or, in other words, is it at a lower level ? (2) Is the photosphere of our luminary to be viewed as composed of heavy solid, or liquid matter, or is it of the nature...

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