Correspondence
Detailing results of the last 14 years of research.
On a symposium on evolution and development at the Zoological Meetings at Penn State in August. On Holtfreter's experimental work. On Rita Levi-Montalcini.
On Hamburger's draft of the first book chapter. On Paul Weiss.
On Yamada's financial situation in the US.
On the publication and the illustrations of "Analysis of Development".
On the ilustrations of "Analysis of Development".
On Holtfreter's upcoming talk.
thank you for reprints, discussion of cyclical activity in older chick embyos and cyclical self-generated activity and adult goal-directed behavior
On Holtfreter's election to the Academy: "It is also a recognition of our old-fashioned brand of Exp. Embryology, and of the solid foundation of our Spemann type of outlook, enriched a bit by exposure to the New Look."
On the revision of Hamburger's "Manual of Experimental Embryology. On his teaching.
On the revision of Hamburger's "Manual of Experimental Embryology. On his teaching. Questions on experimental techniques used by Holtfreter.
On the delayed shipment of eggs. On Rita Levi-Montalcini's current experimental work.