The Earthquake of 1872 in the Owens Valley, California.

______ WILLARD D. JOHNSON, Washington, and W. H. HOBBS, Ann Arbor, Mich. (Read by W. H. Hobbs.)

A Design for a Universal Seismograph with Duplex Recorders for Horizontal Motion,

C. F. MARVIN, U. S. Weather Bureau, Washington, D. C.

Report of Seismological Committee of the International Seismological
Association.

H. F. REID, Baltimore, Maryland, Chairman. (Read by Dr. Otto
Klotz, Ottawa, Canada.)

A Reconstruction of the Water Planes of the Extinct Glacial Great Lakes in the Lake Michigan Basin.

J. W. GOLDTHWAIT, Evanston, Ill.

Earth Movements in the Laurentian Basin Since its Occupation by the Ice. WILLIAM Herbert Hobbs, Ann Arbor, Mich.

A Review of the Great Lakes History, with Special Reference to the Deformation of the Ancient Water Planes.

FRANK B. TAYLOR, Fort Wayne, Ind.

The Mississippian Section in Illinois.

STUART WELLER, Chicago, Ill.

Journal of Geology.

Devonic Elements in the Late Siluric Fauna of Southern Michigan.
A. W. GRABAU, New York, and W. H. SHERZER, Ypsilanti, Mich.

Notes on the Traverse Group of Michigan.

A. W. GRABAU, New York City. (Read by W. H. Sherzer,
Ypsilanti, Mich.)

The Evolution and Distribution of the Pleisosaurs.

S. W. WILLISTON, Chicago, Ill.

On the Discovery of Vertebrate Fossils in the Pennsylvanian, ncar Pittsburg, Pa.

PERCY E. RAYMOND, Pittsburg, Pa.

On the Discovery of Pelycosaurian Remains in Rocks of Pennsylvanian Age near Pittsburg, Pa.

E. C. CASE, Ann Arbor, Mich. (Read by title.)

The Lignite of Mississippi.

CALVIN S. BROWN, University Postoffice, Mississippi.

The Influence of the Tides on the Earth's Rotation.
T. C. CHAMBERLIN, Chicago, Ill.

Glacial Erosion in Wales.

Publications of Carnegie Institution.

W. M. DAVIS, Cambridge, Mass.

Beginning and Recession of Saint Anthony's Falls.
F. W. SARDESON, Minneapolis, Minn.

Arched Structure in Lockport Limestone.

Correlation of Distribution of Copper and Diamonds in the Glacial Drift of the Great Lakes Region.

OLIVER C. FARRINGTON, Chicago, Ill.

The Alterations of Glacial Deposits by Later Ice-invasions.
FRANK CARNEY, Granville, Ohio.

A Demonstration of the Curvature of the Earth's Surface.
ROBERT M. BROWN, Worcester, Mass.

National Geog. Magazine, Vol. xvIII, December 17, 1907,
under title of "A Simple Method of Proving that the
Earth is Round."

Working Hypothesis on the Physiography of Alaska.
WALLACE W. ATWOOD, Chicago, Ill.

The Honeoye-Irondequoit Kame-Moraine.

CHARLES R. DRYER, Terre Haute, Ind.

Glacial Lake Bloomfield.

CHARLES R. DRYER, Terre Haute, Ind.

The Loesses of the Mississippi Valley.
B. SHIMEK, Iowa City, Iowa.

The Gases in Rocks.

R. T. CHAMBERLIN, Chicago, Ill. (Read by T. C. Chamberlin.)

Work of the United States Reclamation Service.
E. T. PERKINS, Chicago, Ill.

Fjords of Puget Sound and the Saguenay.

SECTION F.

ZOOLOGY.

OFFICERS OF SECTION F.

Vice-President and Chairman of the Section.
E. B. WILSON, New York.

Secretary.

C. JUDSON HERRICK, Chicago.

Member of Council.

C. H. EIGENMANN, Indiana.

Sectional Committee.

E. G. CONKLIN, Vice-President, 1907; E. B. WILSON, Vice-President, 1908; C. JUDSON HERRICK, Secretary, 1906-8.

H. B. WARD, I year; FRANK SMITH, 2 years; W. E. RITTER, 3 years; A. W. BLEILE, 4 years; A. L. TREADWELL, 5 years.

Member of General Committee.

G. E. COGHILL, Oregon.

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