Correspondance

Hans Spemann to Viktor Hamburger, 1934
Handwritten
Hans Spemann to Viktor Hamburger, 1932
Handwritten
G. Schmidt to Viktor Hamburger, 1970
Typewritten
G. Schmidt to Viktor Hamburger, 1971
Typewritten
Hans Spemann to Viktor Hamburger, Undated
Handwritten
Hans Spemann to Viktor Hamburger, 1927
Handwritten
Unclear to Viktor Hamburger, 1932
Handwritten
H. Mislin to Viktor Hamburger, 1969
Typewritten
Hans Cloos (possibly) to Unclear, 1930s
Handwritten
Hans Spemann to Viktor Hamburger, 1935
Handwritten
Shi Cheng Wang to Viktor Hamburger, 1948
Typewritten
Hans Spemann to Viktor Hamburger, 1926
Handwritten

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