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Published online by Cambridge University Press: 15 September 2014
The electrical conductivity of most glasses at a temperature of about 100°C is barely a measurable quantity.
For this reason, and on account of the fact that glass conforms to the general rule applicable to non-conductors in showing an increase of resistivity for a fall of temperature, this material has come to be regarded .as practically incapable when cold of allowing the passage of an electric current.
With a view to the further study of electrical conduction in glass, and also because of certain experimental advantages which a conducting glass would possess, I have endeavoured to produce a transparent vitreous substance having that property.
page 628 note * Proc. Roy. Soc., vol. lxiii., Feb. 1898.
page 636 note * It should be noticed that this current appears to be due to the oxidation of the different amounts of sodium upon the two surfaces and is not to be regarded as a voltaic action between sodium and glass.—July 20, 1908.
page 639 note * Journal Röntgen Soc., vol. iv. No. 14, p. 13.