OF

THE AMERICAN ASSOCIATION

FOR THE

ADVANCEMENT OF SCIENCE

FORTY-SIXTH MEETING

HELD AT

DETROIT, MICH.

AUGUST, 1897.

SALEM:

PUBLISHED BY THE PERMANENT SECRETARY.
JUNE, 1898.

BRAN

OF THE Cuba

U. OF C.
LIBRARY

EDITED BY

FREDERIC W. PUTNAM, Permanent Secretary.

The Salem Press Co.
SALEM, MASS.

1898.

Meetings and Officers of the Association of Amer. Geologists and Naturalists

ADDRESS BY THEODORE GILL, THE RETIRING PRESIDENT (in place of

E. D. COPE, deceased)

SECTION A. MATHEMATICS AND ASTRONOMY.

OFFICERS OF SECTION A

ADDRESS OF VICE PRESIDENT, W. W. BEMAN

V

vi

vii

viii

X

Xi

xii

xiii

xir

xxii

xxiii

Xxxiii

xxxiii

xxxiii

Xxxiii

liv

lv

lv

lxxix

31

32

53

ABSTRACTS OF PAPERS READ

SECTION B. PHYSICS.

OFFICERS OF SECTION B

ADDRESS OF VICE PRESIDENT, CARL BAR

ABSTRACTS OF PAPERS READ