Text
Note on visit
Discussion of visa application and arrangements for work
Information about a symposium in New York on the growth and development of the nervous system
abstract: Thymidine determination of neuroglial origin in rat optic nerve: a light and electron microscope autoradiographic study
Handwritten letter, 2 pages
Unknown author, probably Hamburger but no signature
Regarding Dr. Rita Levi-Montalein and places to work
translation of Spemann's letter August 4, 1937
Handwritten letter, 1 page
Handwritten letter, 2 pages
Translation of Spemann's letter August 1, 1937