Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . onwires e e, which projected some distance up, inside the arms b b. The iron wires terminated in brass cups //, carrying appropriatebinding screws. These cups were filled with sealing-wax, whichcemented them to the quartz tube. This sealing-wax had beensucked up the limbs while hot for a considerable distance, nearly upto the points g g, so as to fill the space between the iron wires e eand the lower parts of the quartz tube. The tops of the iron wiresprojected
Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . onwires e e, which projected some distance up, inside the arms b b. The iron wires terminated in brass cups //, carrying appropriatebinding screws. These cups were filled with sealing-wax, whichcemented them to the quartz tube. This sealing-wax had beensucked up the limbs while hot for a considerable distance, nearly upto the points g g, so as to fill the space between the iron wires e eand the lower parts of the quartz tube. The tops of the iron wiresprojected out through the sealing-wax, making contact with themercury. The electrical resistance between the electrodes // lay 1903.] on Some JRccent Investigations on Electrical Conduction. 299 mainly in the narrow portion d d, and this alone, with the branch a,was kept hot. It was found that at a full red heat, the resistance of the liquidmercury was about doubled. The resistance of the saturated vapourwas taken with the same apparatus, the narrow part d d being in thiscase filled with the vapour instead of the liquid; it was still ten. Fig. 3. million times as great as that of the liquid. But the vapour didconduct very appreciably; and a current easily measurable with thegalvanometer could be sent through it with a single battery think that in all probability, if we could trace the charge up to thecritical temperature, we should find that the saturated vapour wouldapproach in its electrical behaviour to the liquid metal. 300 Annual Meeting. [May 1, ANNUAL MEETING, Friday, May 1, 1903. Sir James Crichton-Browne, , Treasurer andVice-President, in the Chair. The Annual Report of the Committee of Visitors for the year1902, testifying to the continued prosperity and efficient managementof the Institution, was read and adopted, and the Report on the DavyFaraday Research Laboratory of the Royal Institution, which accom-panied it, was also read. Sixty-two new Members
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