Correspondence
On Hiroko Holtfreter's upcoming PNAS publication. On teaching experimental embryology lab. On the impossibility to understand self-organization, induction etc. in terms of current molecular biology.
Typewritten letter, 1 page
Typewritten letter, 1 page
Handwritten letter, 1 page
Discussion on various researcher's work
Luciana Rava writes to send Hamburger copies of her drawings and express her joy at seeing Hamburger
Excerpts of a series of letters between Ross G. Harrison and Hans Driesch
Handwritten letter, 2 pages
Handwritten letter, 2 pages
Typewritten letter, 3 pages
Excerpts from letter - About Martha's trip to US, Hitler just seized power, mentions Woods Hole
Comments on Paul Weiss