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FIRST EDITION OFFPRINT, PRESENTATION COPY, of Bohr's first published scientific paper, written while he was a 20-year-old student at Copenhagen University. Inscribed by Bohr in Danish on front wrapper to Poul Heegaard, mathematician and professor at Copenhagen University. In original wrappers.
Price: $9,400 .
FIRST EDITIONS of two critical papers in developing our understanding of the atom: 1) all three parts of Bohr’s landmark work marking the definitive break from using classical physics at the atomic level, often cited as the foundation of our modern understanding of the atom; 2) both parts of Moseley's.....
Price: $5,500 .
OVER 100 PHOTOGRAPHS (with some duplicates) from the archives of the Wide World Photos (later the Associated Press) documenting Einstein’s life. Taken together, the collection – photographs with individual explanatory captions – serves as a biography in pictures through the eyes of the press and is a valuable primary source.....
Price: $23,500 .