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
   
         










