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 Secretary, William H. Hale."

COLUMBUS, OHIO.

AUGUST, 1899.

EASTON:

PUBLISHED BY THE PERMANENT SECRETARY.

DECEMBER, 1899.

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.