people
Thank-you note for letter. On Melvin Marx' plans to move to Yale instead of Berkeley.
Typewritten letter, 1 page
Request for the shipment of NGF, discussion of it's potential use in the neuronal death in the spinal ganglia of the chick embryo
On Hamburger's recent publications on the chick limb-buds. On his upcoming summer visit to Cold Spring Harbor to study Drosophila development.
Message of praise to Ethan Allen Hitchcock Shepley, most likely because of Shepley's retirement from Chancellor of Washington University
Part of To Francis Otto Schmitt from The Schmitty Verein, May 1941
Season's greetings.
Private letter. On Hamburger's emigration and other emigrated scientists.
Thank-you note for Hamburger's review of Harrison's paper. On an exhibition for Harrison's anniversary. On Spemann.
Acceptance of position
Request for informatin regarding manufacturers
On his leave for summer, on his student Melvin Marx at Hamburger's department.