JOURNAL OF THE SOCIETY OF TELEGRAPH-ENGINEERS AND ELECTRICIANS. FOUNDED 1871. INCORPORATED 1883. INCLUDING ORIGINAL COMMUNICATIONS ON TELEGRAPHY AND PUBLISHED UNDER THE SUPERVISION OF THE EDITING COMMITTEE, AND EDITED BY PROF. W. E. AYRTON, F R.S., CHAIRMAN. VOL. XIII.-1884. London: E. AND F. N. SPON, 125, STRAND, W.C. New York: 35, MURRAY STREET. 1884. тк .159 ERRATA. In the lithograph facing page 312 in No. 53 of the Journal, the figures to the left-hand side of Fig. A should be 0, 5, 10, 15, 20, 25, 30, 35, 40. For 58° F., line 19, p. 372, No. 53, read 78° F. TABLE OF CONTENTS. PAGE Proceedings of the Ordinary General Meeting held January 10th, 1884: Transfer of Associates to the Class of Members, and of Students to the Announcements made by the President regarding Mr. Davy's book, Retirement of Mr. Willoughby Smith as President Vote of Thanks to Mr. Willoughby Smith Inaugural Address of Professor Adams, as the President for 1884 ... ... ... 222 Proceedings of the Ordinary General Meeting held January 31st, 1884 :- Transfer of Associates to the Class of Members, and of Students to the "On some New Instruments for Indicating Current and Electro-motive |