Pages 1-3 are Cabot's "obiter dicta," i.e., Cabot thinking through Whitehead's presentation in light of his larger project. Pages 4-9 are Cabot's notes taken during Whitehead's lecture. Pages 10-32 are the stenographer's account of Whitehead's lecture and the ensuing discussion.
Harvard University Archives
Cabot, Richard Clarke, "Whitehead Lecture Notes: Social Ethics Seminary," NOT020, Whitehead Research Library, accessed March 5, 2021, http://wrl.whiteheadresearch.org/items/show/2747.