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Letter from Mark Barr to Whitehead

Barr makes Whitehead aware that Harvard is considering him for a Chair in the Philosophy department.
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Guide to the supplementary HL2 lecture notes

A guide to the supplementary HL2 lecture notes, providing citations and information on lecture dates.
Whitehead Lecture Notes: Philosophy of Science

Notes from Whitehead's class "Philosophy 3b: Philosophy of Science," 1925-1926.