of January 1, 1889, taken by the party of the Washington University of St. Louis. An enlarged picture of this corona from Professor PRITChett's negatives was exhibited to the meeting. Professor HOLDEN explained to the Society the work which was being done by Professor Weinek, of Prague, in enlarging the photographs of the Moon taken with the great telescope and in making drawings from them. (See a note by Professor WEINEK in the present number.) Adjourned.

MINUTES OF THE FIFTH AND SIXTH MEETINGS OF THE CHICAGO SECTION A. S. P., APRIL 7 AND MAY 5, 1891.

The fifth regular meeting of the Chicago Section of the A. S. P. was held Tuesday evening, April 7, 1891, at the Sherman House, Chicago.

Mr. DOUGLASS was in the chair. The minutes of the last meeting were accepted as read. As no business required attention, Prof. G. W. HOUGH gave an interesting lecture on "The Stellar Universe." The meeting then adjourned.

The sixth regular meeting of the Chicago Section of the A. S. P. was held Tuesday evening, May 5, 1891, at the Kenwood Physical Observatory, Chicago. After inspecting the instruments of the observatory and observing Saturn with the 12-inch equatorial, the members were called to order in the library by Chairman DOUGLASS. The minutes of the last meeting were accepted as read.

GEORGE E. HALE then gave an account of the methods used in solar observations, and described some spectroscopic phenomena recently observed and photographed at the Kenwood Observatory. The remarks were illustrated with an optical lantern. During the evening a photograph of the region around Coma Berenices was made with a camera strapped to the tube of the 12-inch equatorial, and provided with a short focus portrait lens.

Rev. H. O. HOFFMAN, Bloomington, Ill., has been added to the list of members of the Chicago Section, A. S. P. Adjourned.

GEORGE E. HALE, Secretary.

262 Publications of the Astronomical Society, &c.

OFFICERS OF THE SOCIETY.

WM. M. PIERSON (508 California Street, S. F.),

FRANK SOULE (Students' Observatory, Berkeley),

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

J. M. SCHAEBERLE (Lick Observatory),

CHAS. BURCKHALTER (Chabot Observatory, Oakland),

W. W. CAMPBELL (Lick Observatory),

F. R. ZIEL (410 California Street, S. F.),

President

Vice-Presidents

Secretaries

Treasurer

Board of Directors-Messrs. ALVORD, BURCKHALTER, CAMPBELL, HILBORN, HILL, HOLDEN, MOLERA, PIERSON, SCHAEBERLE, SOULÉ, Ziel.

Finance Committee-Messrs. ZIEL, HILBORN, BURCKHALTER.

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

Library Committee-Messrs. MOLERA, VON GELDERN and GITCHELL.

Committee on the Comet Medal-Messrs. HOLDEN (ex-officio), SCHAEBERLE, BURCKHALTER. OFFICERS OF THE CHICAGO SECTION.

Executive Committee-Messrs. DOUGLASS (Chairman), EWELL, HALE (Secretary), PIKE,

THWING.

NOTICE.

The attention of new members is called to Article VIII of the By-Laws, which provides that the annual subscription, paid on election, covers the calendar year only Subsequent annual payments are due on January 1st of each succeeding calendar year. This rule is necessary in order to make our book-keeping as simple as possible. Dues sent by mail should be directed to Astronomical Society of the Pacific, 819 Market Street, San Francisco.

It is intended that each member of the Society shall receive a copy of each one of the Publications for the year in which he was elected to membership and for all subsequent years. If there have been (unfortunately) any omissions in this matter, it is requested that the Secretaries he at once notified, in order that the missing numbers may be supplied. Members are requested to preserve the copies of the Publications of the Society as sent to them. Once each year a title. page and contents of the preceding numbers will also be sent to the members, who can then bind the numbers together into a volume. Complete volumes for past years will also be supplied, to members only, so far as the stock in hand is sufficient, on the payment of one dollar to either of the Secretaries. Any non-resident member within the United States can obtain books from the Society's library by sending his library card with ten cents in stamps to the Secretary A. S. P., 819 Market Street, San Francisco, who will return the book and the card.

The Committee on Publication desires to say that the order in which papers are printed in the Publications is decided simply by convenience. In a general way, those papers are printed first which are earliest accepted for publication. It is not possible to send proof sheets of papers to be printed to authors whose residence is not within the United States.

The titles of papers for reading should be communicated to either of the Secretaries as early as possible, as well as any changes in addresses. The Secretary in San Francisco will send to any member of the Society suitable stationery stamped with the seal of the Society, at cost price, as follows: a block of letter paper, 40 cents; of note paper, 25 cents; a package of envelopes, 25 These prices include postage, and should be remitted by money-order or in U. S. postage stamps. The sendings are at the risk of the member.

cents.

Those members who propose to attend any or all of the meetings at Mount Hamilton during the summer should communicate with "The Secretary Astronomical Society of the Pacific," at the rooms of the Society, 819 Market Street, San Francisco, in order that arrangements may be made for transportation, lodging, etc.

PUBLICATIONS

O F THE

Astronomical Society of the Pacific.

VOL. III. SAN FRANCISCO, CALIFOrnia, September 5, 1891. No. 17.

OBSERVATIONS OF JUPITER AND OF HIS SATELLITES WITH THE 36-INCH EQUATORIAL OF THE LICK OBSERVATORY (1888-1890).

During the years 1888-1890 the phenomena of Jupiter's satellites, etc., were observed with the large telescope in the intervals of other work by Messrs. HOLDEN, Schaeberle, Keeler and CAMPBELL. (E. S. H.; J. M. S.; J. E. K.; W. W. C.) The following pages give the notes of such observations. The times are Pacific Standard Times (Greenwich mean times minus 8 hours). The numerous sketches made are here omitted.

The finished drawings made by Mr. KEELER in 1889 have been printed in Publ. A. S. P., vol. II, p. 15. The photographs of 1890 are referred to in these Publications, vol. III, p. 65 and in Mon. Not. R. A. S., vol. LI, p. 402 (article by A. STANLEY WILLIAMS, Esq.).

1888, June 9; Occultation of 47 Libræ by Jupiter.

P. s. t. of Immersion 14h 13m 50.2, see Astronomical Journal,

vol. VIII, p. 64, for details.

The star was seen through the at

mosphere of the planet for more than 80 seconds. E. S. H.

1888, June 22; Eclipse (reappearance) of Satellite I. Excellent

h. m.

S.

vision, Wt. 5; eye-piece 670.

1100 11.4; reappearance, faint. This is not oo. 5 late.

11 00 32.1; satellite twice as bright as at first.

11 00 54.1; Mr. KEELER notes reappearance with 4-inch finder,

power about 25.

II OI 37; satellite full brightness? II 02 06 ; satellite full brightness? 11 02 31; satellite full brightness?

II 02 54; satellite is certainly of full brightness.