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gfs documents
Documents
Magnetic state of prehistoric burned earths : P. L. Mercnnton. (Bull. Société Vandoise, vol. Iii, No. 194.)
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The piezo-electric effect, a new principle for telephone transmitters and receivers : A. M. Nicholson. (Session of the Am. Inst. Elec. Engs., October 10, 1919.)
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New methods of constructing buildings in France : (La Nature, December 27, 1919
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French railroad construction during the war : La Nature, January 3, 1920
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The detection of invisible objects by heat radiation : S. O. Hoffman. Phys. Rev., August, 1919 p. 163
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The use of electricity in agriculture: With special reference to its development in Germany : J. F. Crowley. Journal o f the Royal Society of Arts, October 10 1919
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At the international hydrographic conference
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A positive ray spectrograph : F. W. Aston. Phil. Mag., December, 1919
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The constitution of the elements : F. W. Aston. (Nature, December 18, 1919.)
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Ultra-rapid moving picture photography : H. Abraham, E. Bloch, and L. Bloch. (Comptes Rendus, Acad. des Sciences, vol. clxix, No. 22 1919.)
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Experiments on gravitation : L. Majorana. (Comptes Rendus, Acad. des Sciences, vol. clxix, Nos. 15 and 17, 1919.)
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Destruction of Whales by depth bombs : La Nature, December 27, 1910
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Power from the sun : A. A. Campbell Swinton. (La Nature, December 18, 1919
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An economical method of utilizing the force of the tides
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Test of alpine tanks
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The relation between uranium and radium : Soddy. (Phil. Mag., October, 1919, p. 483.)
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Competitive exhibition of machines and materials used in the building trades : La Nature, December 13, 1919
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Production of iron in Italy
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Industrial employment of very high pressures : Georges Claude. (Comptes Rendus, October 13, 1919.)
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Some characteristics of the spark discharge and its effect in igniting explosive mixtures : C. C. Paterson and Norman Campbell. (Proceedings Physical Society of London, vol. xxxi,
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The speed of sound pulses in pipes : A. L. Foley. (Physical Review, August, 1919)
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