Correspondence
Letter of recommendation
Letter from Hawaii about Carson's election to the academy [National Academy of Sciences?]
Letter about Carson's summer in Woods Hole
Letter about Carson's work with Drosophila
Letter turning down Hamburger's offer of a set of books
Letter about Carson's teaching and research program
Cover letter for unattached enclosure
Letter about Hamburger's article on Cajal and Harrison
Handwritten
Excerpts of a series of letters between Ross G. Harrison and Hans Driesch
Handwritten letter, 2 pages
Request to help Paul Weiss
Comments on Paul Weiss
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten
Handwritten