Letter, typed, with sections underlined, and annotated in ink. Complete, but pages numbered 11 to 19 (top right). Annotated by A. Lang. Discussion of A. Lang's and A.W. Howitt's theories on social organisation. Condition: thin paper, slightly brittle, and tattered along lower edges.
Notes, typed, undated. Cover sheet (envelope) and 17 sheets, 20 pages. Handwritten annotations and corrections throughout. Condition: fragile; some sheets are brittle; some need repair.