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Private letter. Mainly on his high age. Has message by Gertrud 'Trudl' Wiehen.
On his plannings to work as an embryologist for the next 10-15 years. On his & Hamburger's efforts to revitalize invertebrate zoology as a research area in Woods Hole: '(...) Surely if M.B.L. does not do this, it will not be done elsewhere for many years after the war. (...)' Discusses the outline of a planned 'guidebook of invertebrate zoology' for the use of students at the MBL and course leaders at the MBL and at universities.
On Willier's Biographical Memoir Note by Watterson for the Academy of Science. On Neural Crest Symposium at upcoming anatomy meeting. On his collaborations with Hamburger.
Private letter.
On Willier's Biographical Memoir Note by Watterson for the Academy of Science. "On the Willier-Weiss-Hamburger 'Triumvirate'".
On Willier's plans to teach a course in Neuroembryology. On Willier's Biographical Memoir Note by Watterson for the Academy of Science.
Private letter. Has message by Gertrud 'Trudl' Wiehen.
On his plans to continue research on insect photoreceptors & the ultrastructural organization of the photoreceptor membranes.
On Mary Rawles and her final manuscript on 'Tract Specificity in Structure of Down Plumage'.
On Willier's Biographical Memoir Note by Watterson for the Academy of Science.
Private letter. Hamburger is asked to help another emigrant with his job seek.
On his work during the war and his carreer plans after. On livestock breeding and his new appointment at the Agricultural Research Council.