PROCEEDINGS

59

OF

The American Association

ERRATUM.

Page 91 (eleventh line from bottom), change "1.4338" to
"1.4328."

ERRATUM SLIP TO BE INSERTED IN VOL. 47.

Add to list of officers of Section I on page 492: "Press Sec-
retary, William H. Hale."

COLUMBUS, univ.

AUGUST, 1899.

EASTON:

PUBLISHED BY THE PERMANENT SECRETARY.

DECEMBER, 1899.

PROCEEDINGS

59

OF

The American Association

FOR THE

ADVANCEMENT OF SCIENCE

FORTY-EIGHTH MEETING

HELD AT

COLUMBUS, OHIO.

AUGUST, 1899.

EASTON:

PUBLISHED BY THE PERMANENT SECRETARY.

DECEMBER, 1899.

EDITED BY

L. O. HOWARD, Permanent Secretary,

Cosmos Club, Washington, D. C.

Forestry

The Chemical Publishing Company.
EASTON, Pa.

ADDRESS BY FREDERIC WARD PUTNAM, THE RETIRING PRESIDENT I

Address of Vice President, Alexander MACFARLANE

REPORTS READ

ABSTRACTS OF PAPERS READ

SECTION B. PHYSICS.

OFFICERS OF SECTION B

ADDRESS OF VICE PRESIDENT, ELIHU THOMSON

REPORTS READ

ABSTRACTS of Papers READ