PROCEEDINGS

OF

THE AMERICAN ASSOCIATION

FOR THE

ADVANCEMENT OF SCIENCE,

THIRTY-FIFTH MEETING,

HELD AT

BUFFALO, NEW YORK.

AUGUST, 1886.

SALEM:

PUBLISHED BY THE PERMANENT SECRETARY.

JANUARY, 1887.

TABLE OF CONTENTS.

PAGE

xi

xii

xiii

xvi

xviii

xix

xxii

xxiii

XXX

Local Committee of the Buffalo Meeting

Special Committees of the Association

Meetings and Officers of the Association of American Geologists and Natural-
ists

Meetings and Officers of the Association

Act of Incorporation

Constitution of the Association

Order of Proceedings in Organizing a Meeting

Members of the Association:

ADDRESS OF THE RETIRING PRESIDENT H. A. NEWTON

Report of the committee on indexing chemical literature

Appendix to the report of committee on indexing chemical literature.

problem in chemical bibliography.

Fourth report of the committee on standards of stellar magnitudes

Report of the committee on "physics teaching"

Report of progress of committee on deaths, births and marriages

Report of committee on international scientific congress

Report of the American committee of the international congress of geologists

SECTION A. MATHEMATICS AND ASTRONOMY.

ADDRESS OF VICE PRESIDENT J. WILLARD GIBBS

The hirundo. By THOMAS HILL

Second differentials and equicrescent variables. By J. BURKITT WEBB

Some properties of the torus. By C. M. WOODWARD

A new demonstration of Cayley's theorem on the intersections of curves. By

H. B. FINE

Any point or plane (tangential) singularity in an element of a curve of double

curvature can be completely defined by aid of three singularity indices

K,K,K. By H. B. FINE

Photographic determinations of stellar positions. By B. A. GOULD

Some account of a new catalogue of the magnitude of southern stars. By

EDWIN F. SAWYER

74

74

80

A comparative estimate of methods and results in stellar photometry. By S.

C. CHANDLER, jr.

81