Correspondence
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
On Caspari's concept of differentiation.
On his immigration status.
Planning a visit of Martha & Viktor Hamburger in Rochester.
On Watterson as instructor in embryology in Woods Hole.
Typewritten letter, 1 page
Typewritten letter, 1 page
Typewritten letter, 2 pages