Correspondence & Documents
On an article by M. Rose in Scientific American, December 1958, misinterpreting Holtfreter's experimental results on feedback action in embryogenesis.
On his social life. On the upcoming Growth meeting.
On the differentiation of a multicellular organism. On Spemann's organizer. On the status of embryology: "The prominent position of embryology, held for 50 years previously, has been lost." On the critical reception of Weiss.
On his recent trip to Puerto Rico.
On Yamada's financial situation in the US.
On their recent symposium in Washington. On Paul Weiss. On the "modern version of a scientist" and other self-images.
On his invitation to the Montevideo Miedical School in Uruguay.
On the outline of one of their book chapters.
On Holtfreter's draft version of the last book chapter. On different styles of scientific thought in Europe and the US. On Paul Weiss.
Mainly autobiographical letter. On his present situation in Montreal. On his trip to Bali and his malaria studies at the Hamburg Tropeninstitut. On Hamburger's recent work on medullary plate formation. On F. O. Schmitt's article on 'Zipper principle'. On Waddington and induction: "Thus the induction has slipped again through our fingers like jelly, and we are almost back where we have started." [This quote was marked by Hamburger.]
Proposing a textbook on Embryology by Holtfreter and Hamburger. On the completion of his recent manuscript.
Requesting information about the Growth Meeting and Hamburger's experiences in Woods Hole.
On his stay in San Juan, Puerto Rico.
On his emigration and return to Europe. On the status of science in American and German society.
On their book manuscript and the chapter on cell behaviour.
On his trip to the French Caribbean. On recent research results on amphibian development by Holtfreter's students.
On Hamburger's lectures in Woods Hole. On Joan Anderson's work on the morphogentetic fraction of phosphatides.
Comments on their chapter in 'Analysis in Development'.
On arrangements for the upcoming Growth Symposium in New London at Connecticut College for Women; on the Embryology Meeting in Bern in September 1949. On Bill Muchmore visiting Rochester.
On Margaret Mead's "Balinese Character" sent by Hamburger as a christmas gift. On reading Stefan Zweig's "The World of Yesterday".
On Margaret Mead's "Balinese Character" sent by Hamburger as a christmas gift. However, Holtfreter is disgusted by Bateson's & Mead's scientific approach.
On the importance of embryology for cancer research: "Der Unterschied wuerde hinfaellig werden, wenn es uns edlen Embryologen gelaenge, all die aufghehaeuften Weisheiten der Genetic (sic!), Embrologie, Microbiologie, Immunologie, Biochemie und Pathologie zu verdauen und dem Leserpublikum so mundgerecht zu machen, dass nur wir Embryologen den Schluessel zum Krebsproblem in der Westentasche haben." On his X-ray experiments.
References for their chapter in 'Analysis in Development'.
On the future of Analytical Embryology. On references for Holtfreter's chapter.