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Letter from Germany during World War II
Letter from France during World War II describing experiences in Italy
Letter about the progress of World War II
Letter from Italy during World War II
Letter describing his responsibilities in Europe during World War II
Letter from Germany after World War II
Letter describing his responsibilities at the University of Texas
Letter describing his summer work with Fundulus at Salisbury Cove
Letter about his leave of absence and requesting details on Hamburger's developmental genetics course
Discussions about differences of NGF in developing chick embryos and in sarcomas
Updates about plans to visit the US.
Handwritten letter, 2 pages