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Publications No. 13. January 1, 1891.
List of Members of the Society, January 1, 1891 . .
List of Corresponding Observatories and Institutions.
Publications No. 14, January 14, 1891.
Observations and Drawings of Saturn, 1879-1889, by EDWARD S.
HOLDEN
Drawings of Saturn, 1879-1889.
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Index-Map of the Moon, [by Professor CHARLES A. YOUNG]. .
The Observatory of Swarthmore College, by Miss SUSAN J. Cun-
NINGHAM, Director
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-
HALTER, U. S. N.] . . .
Bright Meteor observed in Daylight, by C. F. MERRILL .
Astronomy and Numismatics . .
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4I
The Motion of the Solar System in Space [by Dr. OSCAR
STUMPE]; reviewed by EDWARD S. HOLDEN. .
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Satellites of Mars, 1890, EDWARD S. HOLDEN and J. M.
SCHAEBERLE
THOLLON'S Map of the Solar Spectrum; notice by EDWARD S.
HOLDEN.
Addendum to LUDLAM'S Astronomical Observations (1769), by
EDWARD S. HOLDEN
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46
Solar Parallax from the Transit of Venus photographs of 1882
(results derived by Professor HARKNESS).
Spectrographic Observations of Spica at Potsdam (A. N. 2995);
notice by J. E. KEELER .
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
To the Binder: this should precede page 1, Volume III.
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