Correspondance

Hans Spemann to Viktor Hamburger, 1935
Handwritten
Hans Spemann to Viktor Hamburger, 1927
Handwritten
G. Schmidt and M. N. Ragosina to Viktor Hamburger, 1962
Typewritten
Unclear to Viktor Hamburger, 1932
Handwritten
Hans Spemann to Viktor Hamburger, 1927
Handwritten
Hans Spemann to Viktor Hamburger, 1924
Handwritten
G. Schmidt to Viktor Hamburger, 1976
Typewritten
Hans Spemann to Viktor Hamburger, 1924
Handwritten
Unclear to Paul S. Shieh, 1949
Typewritten
Thomas Hall (possibly) to Viktor Hamburger, 1956
Handwritten
George Wellford Taylor to Viktor Hamburger, Undated
Handwritten

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