CONTENTS.

Officers of the Chicago Meeting

Members of Council of the Chicago Meeting

Local Committee of the Chicago Meeting .

Local Executive Committee of the Chicago Meeting

Special Committees of the Association

Meetings and Officers of the Association of American Geolo-

gists and Naturalists

List of Meetings of the Association

Officers of the Meetings of the Association

Act of Incorporation

Constitution.

Members of the Association:

Surviving Founders

Patrons

Honorary Fellows

Members and Fellows

Incorporated Scientific Bodies

Deceased Members

IN GENERAL SESSION.

ADDRESS OF WILLIAM HENRY WELCH, M. D., THE RETIRING

PAGE.

5

7

9

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13

14

15

28

29

40

40

40

4 I

235

236

ADDRESSES AND PAPERS PRESENTED

SECTION D. MECHANICAL SCIENCE AND ENGINEERING.

260

CASH STATEMENT OF THE TREASURER
CASH STATEMENT OF THE PERMANENT SECRETARY

343

344

346

(4)

Officers of the Chicago Meeting.

PRESIDENT.

E. L. NICHOLS, Cornell University, Ithaca, N. Y.

VICE-PRESIDENTS.

A. Mathematics and Astronomy-E. O. LOVETT, Princeton University, Princeton, N. J.

B. Physics-D. C. MILLER, Case School of Applied Science, Cleveland, Ohio.

C. Chemistry-H. P. TALBOT, Massachusetts Institute of Technology, Boston, Mass.

D. Mechanical Science and Engineering-O. H. LANDRETH, Union College, Schenectady, N. Y.

E. Geology and Geography-J. P. IDDINGS, The University of Chicago, Chicago, Ill.

F. Zoology-E. B. WILSON, Columbia University, New York, N. Y. G. Botany-C. E. BESSEY, University of Nebraska, Lincoln, Neb. H. Anthropology and Psychology-FRANZ BOAS, Franklin Ave.,

Grantwood, N. J.

I. Social and Economic Science-JOHN FRANKLIN CROWELL, care of Wall Street Journal, New York, N. Y.

K. Physiology and Experimental Medicine-LUDVIG HEKTOEN, The University of Chicago, Chicago, Ill.

L. Education-ELMER ELLSWORTH BROWN, Bureau of Education, Washington, D. C.

PERMANENT SECRETARY.

L. O. HOWARD, Smithsonian Institution, Washington, D. C.

GENERAL SECRETARY.

F. W. MCNAIR, Michigan School of Mines, Houghton, Mich.

SECRETARY OF THE COUNCIL.

WILLIAM HARPER DAVIS, Lehigh University, So. Bethlehem, Pa.

SECRETARIes of the sECTIONS.

A. Mathematics and Astronomy-GEORGE A. MILLER, University of Illinois, Urbana, Ill. (pro tem.)

B. Physics—A. D. COLE, Vassar College, Poughkeepsie, N. Y.
C. Chemistry-CHARLES L. PARSONS, New Hampshire College,
Durham, N. H.

D. Mechanical Science and Engineering-WM. T. MAGRUDER, Ohio
State University, Columbus, Ohio.

E. Geology and Geography—F. P. GULLIVER, Norwich, Conn. F. Zoology-C. JUDSON HERRICK, The University of Chicago, Chicago, Ill.

G. Botany-FRANCIS E. LLOYD, care Dr. Henry C. Cowles, Hull Botanical Laboratory, Chicago, Ill.

H. Anthropology and Psychology-GEORGE H. PEPPER, American Museum of Natural History, New York, N. Y.

I.

Social and Economic Science-J. PEASE NORTON, Yale University, New Haven, Conn.

K. Physiology and Experimental Medicine—WM. J. GIES, Columbia University, New York, N. Y.

L. Education-E. L. THORNDIKE, Columbia University, New York, N. Y. (pro tem.)

TREASURER.

R. S. WOODWARD, Carnegie Institution, Washington, D. C.