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Planck, Max, 1858-1947.
Max Planck correspondence, 1919-1948.
These letters are to and from Planck. Correspondents include Hans Thacher Clarke, Gerard Peter Kuiper, and Raymond John Seeger.
Max Planck was a physicist and the author of the quantum theory.
Barton, Henry Askew, 1898-1983.
Clarke, Frieda.
Clarke, Hans Thacher, 1887-1972.
Kuiper, Gerard P. (Gerard Peter), 1905-1973
Richards, Alfred Newton, 1876-1966.
Seeger, Raymond John, 1906-
Physics
Science.
AIP-ICOS
American Philosophical Society. Library. 105 South Fifth Street, Philadelphia, PA 19106, USA
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