VGA Institution

JOURNAL

OF THE

SOCIETY OF TELEGRAPH ENGINEERS AND OF ELECTRICIANS,

INCLUDING

ORIGINAL COMMUNICATIONS ON TELEGRAPHY AND ELECTRICAL SCIENCE.

PUBLISHED UNDER THE SUPERVISION OF THE EDITING COMMITTEE,

AND EDITED BY

W. E. AYRTON, F.R.S., THE CHAIRMAN.

VOL. XI.-1882.

London:

E. AND F. N. SPON, 46, CHARING CROSS.

New York:

44, MURRAY STREET.

TABLE OF CONTENTS.

VOL. XI.

Proceedings of the Ordinary General Meeting held January 19th, 1882:—

Transfer of Students to the Class of Associates, and of Associates to

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the Class of Members

Announcement of the death of Mr. Schwendler

Retirement of Professor G. C. Foster from the Presidentship

Vote of thanks to Professor Foster on retiring

Inaugural Address of Lieut.-Colonel Webber, as President for 1882

Vote of thanks to Lieut.-Colonel Webber

Election of New Members and Associates...

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1

1

2

2

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Proceedings of the Ordinary General Meeting held February 9th, 1882 :—

Transfer of an Associate to the Class of Members

Announcement of the Receipt of Presents...

The "Pilsen" Electric Light Arc Lamp, by H. F. Joel

Remarks by Mr. Joel on the preceding Paper

F. Himstedt-"Damping of Magnets by Iron Plates"

R. Colley-"The Existence of a Dielectric Polarisation in Electrolytes"

J. Russner-"Coefficients of Expansion of Sulphur, India-Rubber,

Gutta Percha, and Paraffin"

Proceedings of the Ordinary General Meeting held February 23rd, 1882 :-

Donations from Mr. Killingworth Hedges and Dr. G. Gore

Letter from Mr. Latimer Clark and Mr. W. H. Preece, regarding the

Lightning Rod Conference

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67

Vote of Thanks to Mr. Latimer Clark and Mr. W. H. Preece...

"On Siemens' System of Railway Gong Signalling," by R. Von Fischer

Treuenfeld ...