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three will be fundamental, and the longitudes be determined by telegraph. Magnetic observations will be carried on as a matter of course, and in a country marked by so many mountain masses special care will be taken to determine their extent and density, with the view of eliminating the effect of local attraction.'' The work of this survey will be commenced next spring.

The Russian and Swedish governments are carrying out the measurement of an arc in the extreme north, in Spitzbergen, between latitudes seventy-seven and eighty-one degrees. Two base lines will be measured and fifty triangulation stations occupied. The work is already well under way.

A third arc is now being measured in South Africa, and if the director of the work, Sir DAVID GILL, Her Majesty's Astronomer at the Cape of Good Hope, is able to carry out his plans, this will dwarf into insignificance anything heretofore done in the way of measuring an arc of a meridian. He proposes to extend the measurements from the Cape of Good Hope to the mouth of the Nile, and thence across the Mediterranean Sea by means of the islands of Greece, and there to connect with the European systems, making in all an arc 105° in extent. It is to be hoped that the plan can be successfully carried out, but the difficulties are many. A start upon the work has already been made, but measurements are temporarily at a standstill on account of the war with the Boers.

The November number of Popular Astronomy contains an interesting account of the opening of the Whitin Observatory of Wellesley College. The building, of white marble, was built and equipped by one of the trustees of the College, Mrs. JOHN C. WHITIN. "The initial equipment consists of a 12-inch Clark equatorial refractor, a 3-inch transit, a sidereal clock, chronograph and a 6-foot-focus Rowland concave-grating spectroscope with heliostat. The telescope is furnished with spectroscope for solar work, polarizing photometer, micrometer, and small star spectroscope, all with electric illumination. Other minor instruments are already purchased, and it is intended to provide less costly apparatus in duplicate for the elementary practice of laboratory divisions."

Two addresses were given on the occasion, one by Professor EDWARD C. PICKERING, of Harvard, on "The New Planet Eros," the other by Professor DAVID P. TODD, of Amherst, on "Laboratory Work in Astronomy."

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MINUTES OF THE MEETING OF THE BOARD OF DIRECTORS, HELD IN THE ROOMS OF THE SOCIETY, NOVEMBER 24, 1900, AT 7:30 P. M.

Mr. BURCKHALTER presided. A quorum was present. The minutes of the last meeting were approved. The following members were duly elected:

LIST OF MEMBERS ELECTED NOVEMBER 24, 1900.

Mr. A. D. AUSTIN.

Mr. PAUL M BENEDICT
Adjourned.

{

Carlton Terrace, Christchurch,
New Zealand.

J Care of Thos. H. Pease & Son,
102 Church St, New Haven, Conn.

MINUTES OF THE MEETING OF THE ASTRONOMICAL SOCIETY
OF THE PACIFIC, HELD IN THE LECTURE HALL OF THE
CALIFORNIA ACADEMY OF SCIENCES, NOVEMBER 24,
1900, AT 8 O'CLOCK P. M.

Mr. PIERSON presided. The minutes of the last meeting were approved.

The following papers were presented:

I. On the Progress made in the Last Decade in D、termination of Stellar Motions in the Line of Sight, by H. C. VOGEL. (Reprinted from Astrophysical Journal)

2. Planetary Phenomena for January and February, 1901, by MALCOLM MCNEILL. 3. The Orbit of 99 Herculis, by R. G. AITKEN.

Mr. PIERSON opened the meeting with an account of the life of Professor KEELER, late President of the Society, and read the resolutions adopted expressing the sorrow felt by the members at his untimely death.

He then introduced the lecturer of the evening, explaining the importance to science of the new method of photographing the Corona, and read a number of letters from the most eminent astronomers, expressing in the highest terms their gratification at the successful results obtained.

Mr. BURCKHALTER gave an account of his expedition to Siloam, illustrated by lantern slides of the eclipse station and of the photographs of the Corona, and explained, by means of drawings and models of his apparatus, the method by which the exposure of the plates is controlled. Adjourned.

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Board of Directors-Messrs. BURCKHALTER, CAMPBELL, DOL BEER, HILL, KEELER, MOLERA,

Miss O'HALLORAN, Messrs. PERRINE, PIERSON, TOWNLEY, ZIEL. Finance Committee-Messrs. PIERSON, BURCKHALTER, HILL. Committee on Publication-Messrs. AITKEN, TOWNLEY, VON GELDERN.

Library Committee-Mr. ToWNLEY, Miss O'HALLORAN, Miss HOBE.

Committee on the Comet-Medal-Messrs. KEELER* (ex-officio), PIERSON, BURCKHALTER.

OFFICERS OF THE CHICAGO SECTION.

Executive Committee-Mr. RUTHVEN W. PIKE.

OFFICERS OF THE MEXICAN SECTION.

Executive Committee-Mr. FRANCISCO RODRIGUEZ REY.

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 be 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 two dollars per volume 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 responsibility for the views expressed in the papers printed rests with the writers, and is not assumed by the Society itself."

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 cents. 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.

Those members who propose to attend 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.

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INDEX TO VOLUME XII.

AITKEN, R. G., Double Star Notes, 31; The Orbit of T Cgyni, 103;
New Double Stars, 127; Venus by Daylight, 198; Note on Capella
as a Double Star, 202; A New Planetary Nebula, 203; The Orbit

PAGE

Asteroids: See Minor Planets.

of 99 Herculis, 240; Observations of the Binary Stars & Equulei
and κ Pegasi in 1900.

255

Astronomical and Astrophysical Society of America, Second Annual
Meeting of

208

117

Astronomical Instruments, Review of Dr. AMBRONN'S Handbook of,
by J. E. KEELER

Astronomical Observations in 1899, by TORVALD Köhl. .
Astronomical Society of the Pacific, Address of Retiring President of,
49; Annual Report of Treasurer of, 85; Award of Bruce Medal of,
82; Corresponding Institutions of, 10; Exchanges of, 11; Members
of, 1; Minutes of Meetings of, 47, 84, 261; Minutes of Meetings of
Directors of, 47, 82, 83, 87,212, 261; Officers of, 48, 88, 137, 214,
262; Report of Comet-Medal Committee of.

Astronomical Telegrams

Astronomy in America, The Development of

.

56

84

76, 131, 205

"Atlas of Representative Stellar Spectra," A Review, by W. W.
CAMPBELL

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109

246

Frontispiece

184

79, 133, 246

AUWERS, ARTHUR, Portrait of
BAYLDON, FRANCIS J., Notes on the Zodiacal Light, 13; Observations
of the Zodiacal Light from January, 1899, to July, 1900.
Binary Stars: See Double Stars.

Book Notices.

BURCKHALTER, CHAS., The Chabot Observatory-Dolbeer Eclipse
Expedition, May 28, 1900, Programme of, 65; A Popular Account

169

of .
CAMPBELL, W. W., Note on the Spectrum of Comet a, 1899, 35; The
Spectroscopic Binary, Herculis, 39; JAMES EDWARD KEELER
(Obituary), 139; The Crocker Expedition to Observe the Total
Solar Eclipse of May 28, 1900 (with C. D. Perrine), 175; The
Triple Star, Pegasi, 202; Honor for, 204; HUGGINS'S "An Atlas
of Representative Stellar Spectra" (Review of), 246; Deter-
mination of the Sun's Distance from Observations of Eros. . 251
Capella:-

As a Double Star, Note on, by R. G. AITKEN.
Visual Examination of, by W. J. HUSSEY

CODDINGTON, E. F., Rediscovery of Minor Planet (415), 36; New
Minor Planet, 1899, EX, 39; Resignation of, as Fellow in Astro-
nomy at the Lick Observatory

Comets:-

Comet 1894 IV, SEARES'S Definitive Elements of

Comet 1896 V, Elliptic Elements of, by W. J. HUSSEY.

202

201

205

43

200

Comet a, 1899, Note on the Spectrum of, by W. W. CAMPBELL. 35

Comets:-

Comet a, 1900, Elements of, by C. D. PERRINE

Comet b, 1900, Elements of, by C. D. PERRINE, 204; Note on,

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75

CRAWFORD, R. T., Note on Comet b, 1900

Crossley Reflector of the Lick Observatory, The:-

A Description of, by J. E. Keeler
Discovery of a New Asteroid with

Use of, for Photographic Measurements of Position
Description of Professor KEELER'S Meridian-Circle .
Development of Astronomy in America, The . . .

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Double Star Astronomy, Notes on the Progress of, by W. J. HUSSEY 91
Double Star Notes, by R. G. AITKEN

Double Stars:-

The Binary OΣ 341, by W. J. HUSSEY..

Capella, Note on, by R. G. Aitken, 202; Visual Examination of,

by W. J. HUSSEY

31

38

Discovery of Three Hundred, by W. J. HUSSEY.

Measures of Two Probably New, by C. D. PERRINE

New, by R. G. AITKEN

Orbit of T Cygni, by R. G. AITKEN.

Orbit of 99 Herculis, by R. G. AITKEN.

201

199

129

127

Observations of 8 Equulei, and κ Pegasi in 1900, by R. G AITKEN 255

The Spectroscopic Binary, ß Herculis, by W. W. CAMPBELL.
Trial Elements of the Binary Star, & Equulei, by W. J. HUSSEY
The Triple Star, K Pegasi, by W. W. CAMPBELL

Earthquake, The Mexican, of January 19, observed at the Lick
Observatory..

Eclipse Expedition:-

The Chabot Observatory-Dolbeer, by CHAS. BURCKHALTER, 64;
A Popular Account of the Chabot Observatory-Dolbeer, by
CHAS. BURCKHALTER

103

240

39

215

202

37

169

The Crocker-Lick Observatory, by J. E. KEELER, 74; Prelimin-
ary Account of Results of, by J. E. KEELER, 130; A General
Account of, by W. W. CAMPBELL and C. D. Perrine. . . . 175
Eclipse of the Sun, May 28, 1900, Brief Notes on the Results of
Observations of

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GILL, DAVID, Award of Bruce Medal to
49, 82
HOLDEN, E. S., Visual Observations of the Moon and Planets at
Harvard College Observatory, (Review of). .
HUSSEY, W. J., The Binary Star OΣ 341, 38; Notes on the Progress
of Double Star Astronomy, 91; Discovery of Three Hundred
Double Stars, 199; Elliptic Elements of Comet 1896 V, 200; Vis-
ual Examination of Capella, 201; Trial Elements of the Binary
Star & Equulei (= OΣ 535). .
Keeler, James E., The Mexican Earthquake of January 19, (1900,)
Observed at the Lick Observatory, 37; Use of the Crossley
Reflector for Photographic Measurements of Position, 73; The

215

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