Files relating to the Cornell Geology Department, especially department meetings and curriculum changes.

Letters about a proposed Brazilian expedition, geology, zoology, and related subjects from Joel Asaph Allen, James Dwight Dana, Arnold Henry Guyot, James Hall, Thomas Sterry Hunt, Alpheus Hyatt, Alpheus Spring Packard, Samuel Hubbard Scudder, Addison Emery Verrill, Jeffries Wyman, and other scientists; also notification of Hartt's membership in the Boston Society of Natural History, his US citizenship papers, and other documents.

Correspondence, memoranda, and plans concerning annual receptions held for seniors in the College of Arts and Sciences; also, photographs and a filmstrip of the Burfoots and Geology Department undergraduates, graduate students, and faculty at various parties and outings; includes letters and poems sent to the Burfoots by Adam Capen Gill.

Includes Cornell University Geology Department correspondence about Orville A. Derby; commemorative medals and stamps; newsclippings; pamphlets; and photographs.

Correspondence pertaining to von Engeln's years at Cornell as a student and professor and to his writings on geology and Cornell history.

Tarr's papers mainly pertaining to geography.

Includes geology lecture notes from the 1920s, lab notebook, notes on deep well drilling and production from the 1940s, and reports on a seismograph survey conducted in Colordo in the 1950s.

Papers of Josiah Butler Williams, banker, businessman, and New York State Senator, contain business, political, and personal papers, accounts, legal documents and correspondence, 1809-1883. Subjects include banking, canals, the lumber business, railroads, and real estate; also, Cornell University, Ovid Academy, the New York and Erie Telegraph Company, the Ithaca and Owego Railroad Company, the Ithaca Cotton Mills, the Merchants and Farmers' Bank, Ithaca, and the Sodus Canal.