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TABLE OF CONTENTS.*
Publications No. 13, January 1, 1891.
List of Members of the Society, January 1, 1891 . . .
Publications No. 14, January 14, 1891.
Observations and Drawings of Saturn, 1879-1889, by EDWARD S.
Index-Map of the Moon, [by Professor CHARLES A. YOUNG]..
The Observatory of Swarthmore College, by Miss Susan J. CUN-
An Account of an Experiment made to determine whether Gravita-
tion-force varies with Temperature, by A. E. Kennelly
Coronal Extension, by C. M. CHARROPPIN, S. J. .
The Kenwood Physical Observatory, by GEORGE E. HALE
The Law of the Solar Corona, by Professor FRANK H. BIGELOW..
Notices from the Lick Observatory
The International Astrophotographic Congress and a Visit to
Certain European Observatories, etc. [by Lieut. WINTER-
Solar Parallax from the Transit of Venus photographs of 1882
(results derived by Professor HARKNESS).
Spectrographic Observations of Spica at Potsdam (A. N. 2995);
Announcement of an English Translation of Dr. DzIOBEK'S
Treatise on the Mathematical Theories of Planetary Motion
(translation by Professor M. W. HARRINGTON); notice by