people
Photocopy of handwritten letter with brief translation, 5 pages
Handwritten letter to Martha and Viktor Hamburger
Typewritten letter, 2 pages
Typewritten letter, 2 pages
Typewritten letter, 1 page
Letter about Hamburger's influence on her life and her work
Request for information about the history of experimental embryology and neuroembryology in Germany and the United States
Typewritten letter, 1 page
Typewritten letter, 2 pages, signed 'Wally'
Typewritten letter, 1 page, signed 'Wally'
Hamburger's sponsorship of Anne Bekoff's Alfred P. Sloan Research Fellowship and request for Betz to write a letter of support
Recommendation letter of Anne Bekoff for a Sloan Fellowship for Basic Research