Publications
On Holtfreter's & Hamburger's book manuscript, on Weiss.
On his book of alpine flowers. On his plan to write an article on 'A common regulation for Embryonic Induction and Cell Type Conversion?'
Review of "Analysis of Development".
On the manuscript of "Analysis of Development". On the program for the upcoming Growth symposium. On his recent visit at Cold Spring harbor.
Typewritten letter, 1 page
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.
On his first article on the action of an androgen administered prenatally on the patterns of behaviour displayed during adulthood. On his upcoming visit as guest lecturer at Hamburger's department at University of Washington.
Request to work with Hamburger. List of publications. Research plans
Typewritten letter, 1 page
Thank-you note for reprints. On the importance of applying electron microcopy to early neurogenesis. On the interpretation of EM images sent by Wechsler.
Reply to rejection letter
On a recent autobiographical article by Holtfreter. On Hamburger's plan for writing autobiographical essays.