Expeditions and Discoveries Sponsored Exploration and Scientific Discovery in the Modern Age

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You searched for: Creation Date 1893 Remove constraint Creation Date: 1893 Creation Date 1893] Remove constraint Creation Date: 1893] Creators/Contributors Parkhurst, Henry M. (Henry Martyn), 1825-1908 Remove constraint Creators/Contributors: Parkhurst, Henry M. (Henry Martyn), 1825-1908 Series Open Collections Program at Harvard University Remove constraint Series: Open Collections Program at Harvard University Series Annals of the Astronomical Observatory of Harvard College ; v. 29, no. 4 Remove constraint Series: Annals of the Astronomical Observatory of Harvard College ; v. 29, no. 4 Subjects Variable stars--Observations Remove constraint Subjects: Variable stars--Observations

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