. Bell telephone magazine . VOL. XVI JANUARY, 1937 NO. l THE AMERICAN COMMUNICATION COMPANIES ANDNATIONAL PREPAREDNESS THE EVOLUTION OF THE CRYSTAL WAVE FILTERMAKING NEIGHBORS OF NATIONSEQUIPPING THE TELEPHONE FLEET A NORTHWEST WINTER —AND THE TELEPHONE American Telephone & Telegraph Co. • New York. Bell TelephoneQuarterly A Medium of Suggestionand a Record of Progress CONTENTS FOR JANUARY 1937 PAGE The American Communication Companies and National Prepared-ness—IF^Z/er 5. Giprd 3 The Evolution of the Crystal Wave Filter—Oliver E. Buckley 25 Making Neighbors of Nations: An Anniversary—
. Bell telephone magazine . VOL. XVI JANUARY, 1937 NO. l THE AMERICAN COMMUNICATION COMPANIES ANDNATIONAL PREPAREDNESS THE EVOLUTION OF THE CRYSTAL WAVE FILTERMAKING NEIGHBORS OF NATIONSEQUIPPING THE TELEPHONE FLEET A NORTHWEST WINTER —AND THE TELEPHONE American Telephone & Telegraph Co. • New York. Bell TelephoneQuarterly A Medium of Suggestionand a Record of Progress CONTENTS FOR JANUARY 1937 PAGE The American Communication Companies and National Prepared-ness—IF^Z/er 5. Giprd 3 The Evolution of the Crystal Wave Filter—Oliver E. Buckley 25 Making Neighbors of Nations: An Anniversary— ... 41 Equipping the Telephone Fleet—T. C Smith 57 A Northwest Winter—and the Telephone 66 Notes on Recent Occurrences 81 VOL. XVI NO. 1 PUBLISHED QUARTERLY FOR THE BELL SYSTEM BY THE AMERICAN TELEPHONE AND TELEGRAPH COMPANY. SUBSCRIPTION, $ PER YEAR, IN UNITED STATES; SINGLE COPIES, 50 CENTS Address all communications to INFORMATION DEPARTMENTAMERICAN TELEPHONE AND TELEGRAPH COMPANY 195 Broadway, New York Contributors to This Issue WALTER S. GIFFORD Harvard University, , 1904. Entered the Bell System as clerk, West-ern Electric Co., Chicago, 1904; Assistant Secretary and Assistant Treas-urer, 1905-08. American Telephone and Telegraph Co., New York, Stat-istician, 1908
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