Hickson's mountaineering trips in the Canadian Rocky Mountains; letter of reference to Prof. Rumble; Roback's employment; Hickson offers financial assistance to publish Roback's [The Interference of Will Impulses]; Roback's article "Psychology and the Natural Sciences"; Edwin B. Holt; Otto Kleinberg [Klineberg]; William Caldwell; William D. Tait; Cyrus MacMillan; comments on the war; Unitarian Conference in Montreal; Joseph McCabe's The Bankruptcy of Religion; Roback's article "On Confessions"; Confessions of a Deserter (?).

Roback's proofs of [The Interference of Will Impulses]; Roback's employment; comments on the war; academic freedom; Hickson's article "Nietzsche and the War"; Bertrand Russell; William D. Tait; John Morley's Recollections.

Roback's paper given at Philosophy Association meeting; Roback's article on Yiddish proverbs; Roback's [The Interference of Will Impulses]; Théodule Ribot.

William Peterson; Sir Henry Jones; Sir Arthur Shipley; McGill affairs; Hickson considers resigning from McGill; Queen's University; University of Toronto; prohibition; Hickson's on "Rationalism of France and Education"; William Caldwell; William D. Tait; Norman Kemp Smith's [A Commentary to Kant's Critique of Pure Reason]; Edward Caird; William E. Hocking's [Human Nature and its Remaking].

Roback's teaching salary [at Radcliffe College?]; McGill Centennial Re-Union; James R. Angell; Hickson's address on Einstein; books on relativity theory; Hickson's lecture on the "Greatness of Spinoza"; Hickson's course on "Main Currents of Contemporary Philosophy".

Roback's article "Intelligence and Behavior" in Psychological Review; William D. Tait; Behaviorism; Hickson on intelligence; Ralph B. Perry; McGill Philosophy Department affairs; William Caldwell; Hickson's course on "Logic and Introduction to Philosophy"; De Silva (?); "mental decline" of McGill students; Morin-Walter legal case at McGill.

Roback's article "Intelligence and Intellect" in Journal of Philosophy; William Caldwell; Hickson's trip to Europe.

Erich Adickes' bibliography of Immanuel Kant; Hickson sends financial assistance to Roback; Hickson's visit with Roback [in Boston]; McGill Philosophy Department affairs; William Caldwell; Hickson's resignation from McGill.

Roback's employment (National Research Council fellowship); Alois Riehl; events in Germany; Hickson's resignation from McGill; Hickson's promotion to Professor; William Caldwell; McGill Faculty of Arts affairs (Hickson as acting-Dean).

Roback's Psychology; Hugo Münsterberg.