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On the completion of their book manuscript. On Yamada.
On Pasteel's review of organizer in Bull. Soc. Zool. de France vol 76, 1951.
On christmas and family matters. On his upcoming talk on Neuroembryology at the end of January at the Neurobiological Committee of the NRC in Washington.
Accepting the offer to review Needham's 'Biochemistry and Morphogenesis' for the Quarterly Review of Biology. On staff for the embryology course in Woods Hole. On new results on phosphatase distribution in the nornal chick embryo.
Unable to come to Hamburger's lab this year
On Hamburger's review of Needham's 'Biochemistry and Morphogenesis'. On the review process for Sol Spiegelman's manuscript. On Hamburger's summer at Woods Hole.
Annotations for the final version of their last book chapter.
Corrections for a book manuscript.
On Willier's plans to spend the summer in Woods Hole.
On the arrival of his new collaborator Rita Levi-Montalcini. On Yamado's experiments with A. punctatum. On obtaining frog eggs. On the technique of hypoph. injection. On their planned book.
On Holtfreter's visa approval. Inivitation to St. Louis.
On Holtfreter's criticism of Weiss.