people
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.
Handwritten letter, 2 pages
Typewritten letter, 1 page
Typewritten letter, 1 page
Handwritten letter, 1 page
Excerpts of a series of letters between Ross G. Harrison and Hans Driesch
Discussion on various researcher's work
Luciana Rava writes to send Hamburger copies of her drawings and express her joy at seeing Hamburger
Handwritten letter, 2 pages
Excerpts from letter - About Martha's trip to US, Hitler just seized power, mentions Woods Hole
Comments on Paul Weiss
Typewritten letter, 1 page