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OF THE

AMERICAN ASSOCIATION

FOR THE

ADVANCEMENT OF SCIENCE

FOR THE PERIOD FROM
JUNE, 1921, TO JUNE, 1925

REPORTING

THE SECOND TORONTO MEETING (74th Meeting)

December 27 to 31, 1921 THE SALT LAKE CITY (SUMMER) MEETING (75th Meeting)

June 22 to 24, 1922

THE FOURTH BOSTON MEETING (76th Meeting)

December 26 to 30, 1922

THE LOS ANGELES (SUMMER) MEETING (77th Meeting)

September 17 to 20, 1923

THE THIRD CINCINNATI MEETING (78th Meeting)

December 27, 1923, to January 2, 1924
THE FIFTH WASHINGTON MEETING (79th Meeting)

December 29, 1924, to January 3, 1925

A..D INCLUDING

An Annotated List of Organizations Officially

Associated with the Association

AND

The Directory of Fellows and Other Members

FOR THE PERIOD FROM
JUNE, 1921, TO JUNE, 1925

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PUBLISHED BY

THE AMERICAN ASSOCIATION FOR THE ADVANCE.

MENT OF SCIENCE

FROM THE

OFFICE OF THE PERMANENT SECRETARY

IN THE

SMITHSONIAN INSTITUTION BUILDING

Washington, D. C.

1925

[4000 copies printed]

THE SCIENCE PRESS

PRINTING COMPANY

LANCASTER, PA.

PREFACE

The Proceedings of the American Association for the Advancement of Science were published as annual volumes from the founding of the Association until 1910. Since 1910 the announcements and the reports of the meetings, together with the presidential and vice-presidential addresses and other official publications, have appeared in the weekly journal SCIENCE, official organ of the Association which is sent free to all members. The adoption of this plan rendered unnecessary the publication of the full proceedings, and they were replaced by volumes of summarized proceedings (with references to SCIENCE) published at intervals of several years. A volume of the Summarized Proceedings, including the Constitution, the Lists of Officers, references to SCIENCE for the Presidential and Vice-Presidential Addresses, and the List of Members, was published in 1912, a second in 1915, and a third (somewhat more complete) in 1921. The present volume is the fourth of the series of Summarized Proceedings. It presents reports for the four-year period from June, 1921, to June, 1925, and corresponds to what would be volumes LXXIV-LXXVII of the full Proceedings if that series of publications had been continued in the earlier form.

The material presented in this volume is classified in two parts, as follows: Part I, Records and Proceedings, the latter including Summary Reports for the Fiscal Years: 1920–21 (in part), 1921–22, 1922–23, 1923–24 and 1924–25 (in part). Part II, The Directory of Members (for the period from June, 1921, to June, 1925), to which is prefixed an Annotated List of the Organizations Officially Associated with the Association.

In the work of preparing and editing the material here presented, the permanent secretary has been very ably assisted by the assistant secretary, Dr. Francis D. Murnaghan; by the executive assistant, Mr. Sam Woodley; by the secretarial assistant, Miss Lena E. Dykes; and by the accounting and filing assistant, Mrs. Sam Woodley.

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The permanent secretary is glad to make mention here of the loyal help that they have given. It is also a pleasure to record the fact that Dr. Sam F. Trelease has had charge of the proof-reading of this volume, in which he has been efficiently assisted by Mrs. Trelease.

BURTON E. LIVINGSTON,

Permanent Secretary.

PART I

Records and Proceedings

of the

AMERICAN ASSOCIATION FOR THE

ADVANCEMENT OF SCIENCE

for the period from

JUNE, 1921, TO JUNE, 1925

Edited by

FRANCIS D. MURNAGHAN, Assistant Secretary

and

BURTON E. LIVINGSTON, Permanent Secretary

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