R. G. Aitken, Mt. Hamilton, Cal.
American Academy of Arts and
Sciences, Boston, Mass.
Astronomical and Physical Society,
Toronto, Canada.
Astronomical Society of the Pacific.
N. C. Duner, Upsala, Sweden.
Dr. Bernhard Engel, Thorn, Germany.
Harvard Astrophysical Conference.
International Conference on Terrestrial
Magnetism and Atmospheric Electricity,
London, England.
Meteorological Service, Canada.
Naturforschende Gesellschaft, Danzig,
Germany.
Nautical Almanac Office, Washington,
D. C.
Nova Scotian Institute of Sciences,
Halifax, Canada.
Reale Academia dei Lincei, Rome,
Italy.
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Royal Astronomical Society, London,
England.
Mr. H. C. Russell, New South Wales.
H. Schultz, Germany.
Smithsonian Institution, Washington,
D. C.
Societa degli Spettroscopisti Italiani,
Rome, Italy.
Societa Meteorologica Italiana, Turin,
Italy.
Société Astronomique Russe, St. Petersburg,
Russia.
Société Belge d'Astronomie, Bruxelles,
Belgium.
United States Civil Service Commission,
Washington, D. C.
United States Coast and Geodetic Survey
Bureau, Washington, D. C.
University of Pennsylvania, Philadelphia,
Pa.
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