Contains 50 typed pages titled "Memoranda for the comparison of the colored facsimilie edition of the Codex Peresianus, (L. de Rosny, Paris, 1887), with the original in the Bibliothéque Nationale, Paris." Contains also a conclusion regarding the restoration and interpretation of Mayan hieroglyphic texts.

Contains a typed study titled "Early Chinese Paintings" by a Professor Veciliano. Contains also what appear to be Gates' own typed notes on Chinese art.

Contains an article in French written for the International Congress of Prehistoric Anthropology titled "Conceps linguistiques dans l'Amérique ancienne." Also contains Gates' English language draft of the article.

Contains a 24 page manuscript titled "Maya Mathematics and Astronomy."

Contains 31 hand-written pages of notes on Peter Martyr. See Gates' correspondence with Adolf Bandelier. Contains also one page of typed notes on Richard Eden. Contains also six pages of what appears to be a bibliography relating to Christopher Columbus.

Contains two two-page typed copies of William Gates' resolution of protest to be sent to the International Congress of Americanists. The letter protests the Congress' abrupt declining to hold a future congress at Philadelphia. Contains also a list of official delegates to the Twentieth International Congress of Americanists to be held in Brazil in 1922. Contains also a blank registration form for the Congress.

Contains a four page, typed manuscript by Gates titled "What is Going on in Mexico?" Gates in this article describes Mexico's struggles since the colonial period, praising the efforts of Mexico's post-revolution leaders (Lázaro Cárdenas) and their efforts to enact agrarian and educational reform. Gates is also critical of excessive spending under President Roosevelt's New Deal.

Contains notes on the School of Antiquity, including notes related to lecture schedules, school members, and other administrative notes.

Contains 34 pages of hand-written notes on the footnotes in Helena Petrovna Blavatsky's "Isis Unveiled."