people
Letter about his leave of absence and requesting details on Hamburger's developmental genetics course
Request to arrange Jean Wiame's visit
Asking for help to get an assistant for Dr. Hetz.
A welcoming note for Hamburger's visit to the University of Pennsylvania in December.
Updates about plans to visit the US.
Handwritten letter, 2 pages
Updates: Brachet's lab was shut by the Nazis; The book project was the only thing left that he could do; Going to the US from May to June.
Typewritten letter, 1 page
thank you for invitation to visit and sending of reprints, discussion of meeting and research
Discussions about differences of NGF in developing chick embryos and in sarcomas
Typewritten letter, 1 page