Letter from Rosalind Franklin to Donald Caspar, May 19, 1955
- 1955-May-19
Envelope, letter, and photographic print sent from Rosalind Franklin (1920-1958) to Donald Caspar (1927-2021). Franklin welcomes Caspar's imminent arrival at Birkbeck in September and includes a print of the x-ray diffraction pattern of the tobacco mosaic virus (TMV). Between 1955–1956 Caspar worked with Franklin at Birkbeck College in London. He remained one of Franklin's closest friends during her lifetime. In 1956 they published individual but complementary papers in Nature, together showing that TMV was a hollow rod, rather than a solid structure as generally believed.
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Franklin, Rosalind. “Letter from Rosalind Franklin to Donald Caspar, May 19, 1955,” May 19, 1955. History of Molecular Biology, Box 7, Folder 10. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/y5ua8gp.
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