Hamburger, Viktor
On his difficulties travelling to Europe.
Thank-you note for Hamburger's seminar notes on the lens problem.
On his recent vacation.
On his upcoming travel to Zurich.
Request for reprints on NGF articles, discussion of research on spinal ganglia
Sending contact information of G. A. Schmidt
First version of a proposal for the symposium 'The Genetic Control of Embryonic Development' (Chair: B. H. Willier) at the Dallas meeting of the American Association for the Advancement of Science.
Typewritten letter, 1 page
Typewritten letter, 2 pages
Invitation to prepare a manuscript on "Recent Concepts of the Embryonic Inductor" for the Quarterly Review of Biology.
On Caspari's concept of differentiation.
On his immigration status.