Observatory, Berlin, Germany.
Observatory, Brussels, Belgium.
Observatory, Cambridge, England.
Observatory, Cape of Good Hope.
Observatory, Cincinnati, Ohio.
Observatory, Cordoba, Argentine Republic.
Observatory, Dublin, Ireland.
Observatory, Edinburg, Scotland.
Observatory, Greenwich, England.
Observatory, Harvard College, Mass.
Observatory, Leiden, Germany.
Observatory, Lick, San José, California.
Observatory, Melbourne, Australia.
Observatory, Milan, Italy,
Observatory, Paris, France.
Observatory, Prague, Germany.
Observatory, U. S. Naval, Washington, D. C.
American Academy, Boston, Mass.
American Phil. Society, Philadelphia, Penn.
Chief Signal Officer of the Army, Washington,
D. C.
Commonwealth of Pennsylvania.
Elisha Mitchell Scientific Society, Chapel
Hill, N. C.
Imperial Academy of Sciences, St. Petersburgh,
Russia.
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Nautical Almanac Offce, Washington, D.C.
Royal Academy, Rome, Italy.
Royal Astronomical Society, London, England.
Smithsonian Institution, Washington, D. C.
U.S. Coat and Geodetic Survey, Washington,
D. C.
Dr. O. Backlund, Poulkova, Russia.
Mr. Roert Bryant.
Mr. S. C. Chandler, Cambridge, Mass.
The Earl of Crawford and Balcarres, Aberdeen,
Scotland.
Dr. W. Döllen, Poulkova, Russia.
Mr. W. H. inlay, Cape of Good Hope.
R. Friedländer and Son, Berlin, Germany.
Dr. Paul Harzer, Poulkova, Russia.
Dr. Henry M. Parkhurst, New York.
Prof. C. Piazzi Smyth, dinburg, Scotland.
Prof. E. C. Pickering, Cambridge, Mass.
Prof. Wm. H. Pickering, Cambridge, Mass.
Prof. G. V. Shiaparelli, Milan, Italy.
Mr. Ludwig Struve, Poulkova, Russia.
Dr. Otto Struve, Poulkova, Russia.
Mr. F. Terby, Brussels, Belgium.
Mr. Wm. C. Winlock, Washington, D. C.
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