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Brown to Schmitt, May 9, 1941
Part of To Francis Otto Schmitt from The Schmitty Verein, May 1941
Wolfgang Wechsler to Viktor Hamburger, February 27, 1964
Request to exchange prints on developing nervous system in chick embryos.
Karl von Frisch to Viktor Hamburger, March 4, 1950
Typewritten letter
Gunther S. Stent to Viktor Hamburger, September 29, 1978
Enclosed writings
Karl von Frisch to Viktor Hamburger, June 5, 1949
Typewritten letter
Victor C. Twitty to Viktor Hamburger, December 28, 1940
On his summer course at Ann Arbor, on Triturus
C. Straznicky to Viktor Hamburger, July 4, 1985
Discussion of their experiments which do not confirm Hamburger's work
Karl von Frisch to Viktor Hamburger, April 18, 1949
Handwritten letter
Unknown to Viktor Hamburger, May 5, 1967
Thank you
Karl von Frisch to Viktor Hamburger, June 30, 1969
Typewritten letter
Karl von Frisch to Viktor Hamburger, November 18, 1967
Typewritten letter
Karl von Frisch to Viktor Hamburger, November 21, 1967
Typewritten letter

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