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

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You searched for: Creators/Contributors Campbell, Leon, 1881-1951 Remove constraint Creators/Contributors: Campbell, Leon, 1881-1951 Repository John G. Wolbach Library, Harvard-Smithsonian Center for Astrophysics Remove constraint Repository: John G. Wolbach Library, Harvard-Smithsonian Center for Astrophysics 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. 79, pt. 1 Remove constraint Series: Annals of the Astronomical Observatory of Harvard College ; v. 79, pt. 1 Subjects Stars--Observations Remove constraint Subjects: Stars--Observations Subjects Variable stars Remove constraint Subjects: Variable stars

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