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On Hamburger emigration. On Baltzer's wrong view on emigrating from NAZI Germany.
states that opacum eggs were shipped
On Hamburger's talk at the Konrad-Lorenz-Institute. On Konrad Lorenz and Ireaneus Eibl-Eibesfeldt.
On Weiss' appointment as visiting professor of zoology at Washington University in February, March, April, and, partly May, 1947.
On his present work, the study of isolated lumbo-sacral segments which are transplanted into the coelom without limb buds, and mitotic and nuclear counts in wing extirpation experiments. "I hope to be able soon to take up work on pattern formation."
On sources for Ambystoma eggs. On the completion of the MS of his Manual.
On open positions at Hahnemann Medical College and Hospital of Philadelphia.
Part of To Francis Otto Schmitt from The Schmitty Verein, May 1941, poem: On gurpling to M.I.T.
On the manuscript of his laboratory manual for universituy of Chicago Press. Short note on five-legged frogs and Weiss' work in the field of nerve regeneration and nerve surgery.
Hamburger turns down his assignment to write Willier's Biographical Memoir Note for the Academy of Sciences: 'I honestly believe that Ray's biographical essay can hardly improved by me.'
Recommending Rita Levi-Montalcini as a presenter for the Congress of the International Institute of Embryology.
On Weiss' appointment as visiting professor of zoology at Washington University in February, March, April, and, partly May, 1947.