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Publications No. 19, November 28, 1891.

(Seventh) Award of the DONOHOE Comet-Medal (to E. E. BARNARD) 354 The Forms of Jupiter's Satellites, by J. M. SCHAEBERLE and W. W. CAMPBELL..

Path of a Shooting Star, by TORVALD KÖHL.

355

358

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359

Observations of Markings on Jupiter's Third Satellite, by J. M.
SCHAEBERLE and W. W. CAMPBELL

Plates of Jupiter's Satellite III.

Notices from the Lick Observatory.

to face pages 359 and 361

FRANZ FRIEDRICH ERNST BRUENNOW, translated from the
German of Professor A. KRUEGER, by J. M. SCHAEBERLE. . 367
Portrait of Professor BRUENNOW.
to face page 367

Experiments on the Effectiveness of Photographic Telescopes of
Different Focal Lengths [by Professor N. C. DUNÉR]. . .
Elevations at Mount Hamilton.

Meteor Fall in Arizona (Sept. 7, 1891).

Rainfall at Mount Hamilton (1880–91) . .

New Instruments for the Allegheny Observatory.

369

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370

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371

The Milky Way is a Separate System of Stars [by Dr. DAVID
GILL] ...

Dr. RUTHERFURD'S Negatives of the Moon, etc.

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Characteristic Forms within the Cluster in Hercules, by EDWARD
S. HOLDEN.

Diagram of the Cluster in Hercules

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Gift to the Lick Observatory [by WALTER W. Law, esq.] . . . 377
Proposed Dissolution of the firm of ALVAN CLARK & SONS. . 377
The Great Red Spot on Jupiter [by W. F. DENNING, F. R. A. S.] 377
Elements and Ephemeris of Comet e, 1891 (BARNARD, October 2)
by W. W. CAMPBELL..

The LADD Observatory (Providence, R. I.) .

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Scientific Visitors to the Lick Observatory (Professor SWAIN). 379 Comparative Brevity of the English, French and German Languages in Scientific Writings.

Errata in Publications No. 17

Additional Corrections to Watson's Theoretical Astronomy, by
W. W. CAMPBELL. (See, also, Vol. III, pp. 87, 223) . .
Unusual Phenomenon observed on Jupiter, Sept. 29, 1891, by
H. S. HURLBERT

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Minutes of the Meetings of the Directors, November 16 and 28, 1891. 381 Members elected

381

Rules governing the distribution of extra copies of the Publica-
tions, of reprints, etc. .

382

Minutes of the Meeting of the Society, November 28, 1891 .

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CHAS. BURCKHALTER (Chabot Observatory, Oakland),

J. M. SCHAEBERLE (Lick Observatory),

E. J. MOLERA (850 Van Ness Avenue, S. F.),

President

Vice Presidents

Secretaries

Treasurer

Board of Directors-Messrs. ALVORD, BURCKHALTER, Grant, HILL, HOLDEN,

MOLERA, PIERson, SchaEberle, Soulé, WYTHE, ZIEL.

Finance Committee-Messrs. PIERSON, MOLERA, HILI.

Committee on Publication-Messrs. HOLDEN, KEELER, YALE.

Library Committee-Messrs. MOLERA, BURCKHalter, Pierson.

Committee on the Comet Medal-Messrs. HOLDEN (ex-officio), SCHAEBERLE, BURCKHALTER.

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