Proceedings of the Royal Society of London, Volume 29

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Page 482 - For compressible flow this becomes: where y is the ratio of the specific heat at constant pressure to that at constant volume...
Page iv - PHYSICS. LESSONS IN ELEMENTARY PHYSICS. By "BALFOUR STEWART, FRS, Professor of Natural Philosophy in Owens College, Manchester. With numerous Illustrations and Chromoliths of the Spectra of the Sun, Stars, and Nebulae.
Page 425 - The thauks of the Society were given to the Scrutators. The following Table shows the progress and present state of the Society with respect to the number of Fellows : — Patron it nd Koyal.
Page 383 - The only work on this subject with scientific determinations, and which need here be referred to, was published in the year 1840 by James Scott Bowerbank, and is entitled " A History of the Fossil Fruits and Seeds of the London Clay.
Page 422 - The PRESIDENT then delivered his Address, (p. 65.) It was proposed by Mr. LATHAM, seconded by Mr. FIELD, and resolved:— " That the thanks of the Society be given to the President for his Address, and that he be requested to allow it to be printed in the Quarterly Journal of the Society.
Page 73 - ... similar to that at the first contraction. Beyond this point, if the jet retains its coherence, sheets are gradually thrown out again, but in directions bisecting the angles between the directions of the former sheets. These sheets may, in their turn, reach a limit of development, again contract, and so on.
Page xv - Baronet, was the second son of Captain Donald Matheson, of Shiness, in the county of Sutherland, and •was born in 1796. He was educated at the High School and University of Edinburgh, and after a few years' business training in London, he went out to the East, and engaged in mercantile pursuits. He was one of the founders of the eminent house of Jardine, Matheson, and Co., in China. In 1836, during a visit to this country, he published a volume on the China trade, which threw light on a subject...
Page 134 - I have lately been engaged in studying the spectrum of sodium under new experimental conditions. In anticipation of a detailed communication I take leave to state that the vapour given off from the metal after slow distillation in a vacuum for some time shows the red and green lines without any trace whatever of the yellow one. Hydrogen is given off in large quantities, and at times the C line and the red "structure
Page 58 - ... and this is so exact that if we put, say, a silver coin whose value is 115, no other degree will produce equality. Once knowing, therefore, the value of any metal or alloy, it is not necessary to know in advance what the metal is, for if its equality is 115, it is silver coin ; if 52, iron ; if 40, lead ; if 10, bismuth ; and as there is a very wide limit between each metal, the reading of the value of each is very rapid, a few seconds sufficing to give the exact sound-value of any metal...
Page 82 - Plateau. of the note, though not absolutely definite, cannot differ much from that which corresponds to the division of the jet into wave-lengths of maximum instability ; and, in fact, Savart found that the frequency was directly as the square root of the head, inversely as the diameter of the orifice, and independent of the nature of the fluid — laws which follow immediately from Plateau's theory. From the...

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