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From Radio-Active Substances (1903, Engl. 1904) by Marie Curie
Under the influence of the rays emitted by the new radio-active substances, the distance of discharge between two metallic conductors for a given difference of potential is
increased ; to put it otherwise, the passage of the spark is facilitated by these rays.
In causing conductivity, by the action of radio-active bodies, in the air in the neighbourhood of two metallic conductors, one of which is connected to earth and the other to a well-insulated electrometer, the electrometer is seen to be permanently deflected, which gives a measure of the electromotive force of the battery formed by the air and the two metals (electromotive force of contact of the two metals, when they are separated by air.) This method of measurement was employed by Lord Kelvin and his students, the radiating body being uranium * ; (etc).
Radio-active bodies may be employed in the study of atmospheric electricity. The active substance is enclosed in a little box of thin aluminium fixed at the extremity of a metal wire connected with the electrometer. The air is made to conduct in the neighbourhood of the end of the wire, and the latter adopts the potential of the surrounding air. radium thus replaces, with advantage, the flames or the apparatus of running water of Lord Kelvin , till now in general use for the investigation of atmospheric electricity.
* LORD KELVIN, BEATTIE et SMOLAN. Nature, 1897.
New York : Philosophical Library 1961, Ch. III, pp. 60-61.
Note ( * ) taken from Recherches sur les Substances Radio-Actives,
Paris : Gauthier-Villars 1903, p. 90.
Please see http://www.lib.uct.ac.za/mss/existing/Finding%20Aids/bc_215_beattie_collection.htm
From PROCEEDINGS OF THE ROYAL PHILOSOPHICAL SOCIETY OF GLASGOW
Society Journal Index : Volumes 26-30 : 1894-1898
Experiments with Rontgen Rays, Ultra-violet Light and Uranium
AUTHOR J Carruthers Beattie, DSc, FRSE and Smoluchowski de Smolan, PHD
DATE 14 April 1897
VOLUME XVIII YEAR 1897 PAGE 284
source : http://myweb.tiscali.co.uk/royalphil/rps/journal/jindex26_30.htm
South Africa. Survey Commission.
Title Report of the Survey commission appointed by His Royal Highness the governor-general to enquire into matters concerning the surveys of land ...
Imprint Cape Town, Times Limited, government printers, 1921.
Descript 1 p. l., 17 p. fold. chart. 33 cm.
Note At head of title: Union of South Africa.
J.C. Beattie, chairman.
[ New York Public Library ]
Beattie, John Carruthers, b. 1866.
Title Report of a magnetic survey of South Africa, by J.C. Beattie.
Publisher London, Pub. for the Royal Society and sold by the Cambridge University Press, 1909.
Description ix, 1, 235 p., illus. (incl. maps).
Language English
Beattie, John Carruthers, b. 1866.
Title Report of a magnetic survey of South Africa, by J.C. Beattie.
Publisher London, Pub. for the Royal Society and sold by the Cambridge University Press, 1909.
Description ix, 1, 235 p., illus. (incl. maps).
Language English
[ U. of California ]
22 - KELVIN, Lord; BEATTIE, John Carruthers Beattie; DE SMOLAN, Maryan
Smoluchowski. Experiments on the electrical phenomena produced in gases
by R�ntgen rays, by ultraviolet light, and by uranium. Proceedings of the
Royal Society of Edinburgh, v. 21, p. 393-428, 1897. Idem. On electric equilibrium
between uranium and an insulated metal in its neighbourhood. Philosophical
Magazine, [s�rie 5], v. 45, p. 277-9, 1898. Ibidem, v. 46, p. 82, 1897.
Idem, Proceedings of the Royal Society of Edinburgh, v. 22, p. 131-4, 1898.
Idem, Nature, v. 55, p. 447-8, 1897.
Source : ( page 40 item # 22 at :
www.mast.br/sbhc/Revista/RSBHC1N/SBHCpag29-41.pdf
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