Text
Handwritten letter, 3 pages
On an upcoming meeting in Washington on March 18.
Unknown author, probably Hamburger but no signature
Letter of refusal (reply to Hamburger's letter from November 3; for a lecture at Washington University.
Unknown author, probably Hamburger but no signature
Handwritten letter, 3 pages
On Yamadas "and his "brilliant work on the gastrula and neurola."
Handwritten letter, 2 pages
Handwritten letter, 2 pages
Handwritten letter, 4 pages