Correspondence
Updates about studies at Harvard University and Woods Hole, MA.
Discussion about whether Ernst Haeckel was a materialist or idealist; updates on the Birkhauser collection.
Congratulations to Hamburger's Presidential Science Medal; Excitement about reading Haeckel and Weismann.
Updates about a recent trip to a meeting on the role of Dobzhansky in the evolutionary synthesis in Soviet Union and teaching courses at Harvard.
Letter thanking Trinkaus for his lecture at Kansas State Universtiy
Letter to Trinkaus telling him about his paper on Ilyanassa and thanking him for his mentorship in Woods Hole
thank you for meeting and for visiting Ray Wattersen while sick in Iowa ~1983/84
Letter written in German.
Letter written in German.
Notification of reappointment as Research Associate in Zoology. Attached a form for reappointment.
Notification of reappointment as Research Associate in Zoology. Attached a form for reappointment.
Notification of reappointment as Research Associate in Zoology in 1965. Attached a form for reappointment.
Notification of appointment as Research Associate in Zoology in 1964.
Handwritten postcard
About Coghill's "apprentice"
Handwritten letter, 2 pages
