SCIENTISTS – A collection of five letters and documents, including, PLANCK, Max (1858-1947). ALS to Paul Epstein, Berlin, 19 January 1938. In German. Planck muses on the pre-history of the first law of thermodynamics, and is especially interested to...

SCIENTISTS – A collection of five letters and documents, including, PLANCK, Max (1858-1947). ALS to Paul Epstein, Berlin, 19 January 1938. In German. Planck muses on the pre-history of the first law of thermodynamics, and is especially interested to learn that Albrecht von Haller (1708-1777) had already observed that the temperature of both milk and water increases when the liquids are vigorously shaken. – LORENTZ, Hendrik Antoon (1853–1928). ALS to Paul Epstein, Harlem, 15 August 1921. In German. A letter of recommendation for Paul Epstein. – SOMMERFELD, Arnold (1868-1951). ANS (“Hrzl. Gruss. A Somerfeld”) to Peter Paul Koch (1879-1945), Mt. Lowe (California), no date but ca. 1923-1928. In German. A particularly jovial postcard written during a ‘evening’s entertainment’ organized by Sommerfeld during one of his visits to Pasadena (1923 or 1928). – DUKAS, Helen (1896-1982). TLS to Paul Epstein, Princeton, December [n.d. ca 1960s?]. Concerning copies of Albert Einstein's letters in Epstein's possession – TLS to Ernst Gabor Straus, Princeton, 22 October 1962. Informs Straus that she is embarking upon a ‘History of Science project, of which you may have heard” and is chasing down Einstein’s correspondence. She asks Straus for any news of Paul Epstein, whom she is certain has several unrecorded letters. Together, five pieces.

Pre-Lot Text
PROPERTY FROM THE DESCENDANTS OF PAUL S. EPSTEIN (1883-1966)