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PROCEEDINGS OF THE

ENGINEERS’CLUB OF PHILADELPHIA

ORGANIZED DECEMBER 17, 1877

INCORPORATED JUNE 9, 1892

PUBLISHED MONTHLY BY THE ENGINEERS' CLUB OF PHILADELPHIA UNDER THE SUPERVISION

OF THE PUBLICATION COMMITTEE

Editors:

J. A. VOGLESON S. M. SWAAB E. S. FOLJAMBE J. W. LEDOUX JOHN P. MUDD

Associate Editors: JONATHAN JONES (A.S.C.E.), JOHN P. MUDD (A.S.M.E.), WALTER DALTON (A.I.E.E.),

H. P. GANT (A.S.H. and V.E.), D. K. BULLENS (M.I.T.), A. F. MAYERS (I.E.S.), B. B. BACHMAN (S.A.E.)

Assistant to the Editors: R. F. VICKERS

VOL. XXXIV-1

JANUARY, 1917

CONTENTS OF THIS ISSUE

No. 146

Permission is given to reprint any paper after its date of presentation, provided proper credit is given.

Contributions of all kinds on all topics of interest to the members of the Engineers' Club are cordially invited. All matter for publica-

tion, including advertising copy, must be in the hands of the Editor by the 20th of the month for the issue of the following month.

COPYRIGHT 1916 by ENGINEERS' CLUB OF PHILADELPHIA

SUBSCRIPTION: Members, 25c. a copy, $2.00 a year. Non-Members, 35c. a copy, $3.00 a year. Foreign, 50c. a copy, $4.00 a year.

NOTE: The Club as a body is not responsible for the statements and opinions advanced in its publications.

Entered as matter of the Second Class, at the Post Office, Philadelphia, Pa., under the Act of Congress, March 3, 1879.

Editorial

Nearly two years have elapsed since the program of the Engineers' Club for increasing its sphere of usefulness through affiliation with local technical societies was made operative, and the success that has attended the closer association bears witness to the opportunities for better co-operation among these societies.

Most of the problems presented by the affiliation of seven engineering organizations with the Engineers' Club have been solved to the general advantage of all and a working basis for the association of technical societies in Philadelphia has been established.

Although the By-Laws of the Club were revised at the time of this joining together of the several engineering organizations, many desirable modifications have become apparent, deeming the practical working out of the affiliation idea, and the By-Laws Committee has given much time. and thought to further simplification and classification.

The Club members will be called upon within a few weeks to vote upon the proposed amendments to the By-Laws, and they are asked to give this matter thoughtful consideration. The method of amending the By-Laws has already been approved by the Club, so that the general amendments about to be presented to the membership can now be voted upon without delay. Perhaps the most radical changes proposed relate to the appointment of an executive secretary, and the simplification of the method of electing officers by use of the letter ballot.

The Club, which now has a membership of nearly 2500, is engaged upon an enterprise in which much of the work is delegated to committees, whose members must work intermittently on Club affairs, and an executive secretary should be provided who will give his entire time to the Club's interest. The proposed By-Laws provide for the annual appointment by the Board of Directors of such an officer, and he will be responsible to the Board for the proper conduct of the business affairs of the Club. Such a Secretary can do much toward solving the problems now so forcibly before us and to make possible the appointment is the next step in a development which can only be attained by persistent and consistent pressure toward a definite goal.

We are pleased to present to our readers of this issue, three papers on the subject of "Telephone Engineering", contributed by Junior members of the Club, and it is our hope that other Junior members will be encouraged to offer papers for publication.