Gulistān : manuscript, 1727?

Written in one column (in black and red ink) and two columns (in red ink), 29 lines per page.

Student essay composed by Thomas Mason, 1796

Three-page folio-sized handwritten student essay composed by Thomas Mason as a Harvard undergraduate. The verso of the last page is inscribed "Mason February 1796." A quotation from Edward Young appears at the top of the first page: "Heaven gives us friends to bless the present science; / Resumes them, to prepare us for the rest." The essay discusses friendship and the death of friends, and begins, "The author of our nature has so constituted it, that pleasure is unknown without the intervention of pain."

Mathematical notebook attributed to Thaddeus Mason Harris, ca. 1787

Hardcover notebook containing handwritten transcriptions of rules, cases, and examples from 18th century mathematical texts. The author and purpose of the volume is unclear, though it has been connected with Thaddeus Mason Harris (Harvard AB 1787). Most of the entries include questions and related answers, suggesting the notebook was used as a manuscript textbook and workbook. The extracts appear to be copied from John Dean's " Practical arithmetic" (published in 1756 and 1761), Daniel Fenning's "The young algebraist's companion" (published in multiple editions beginning in 1750), and Martin Clare's "Youth's introduction to trade and business" (extracts first included in 1748 edition).

The invention of letters annotated by Charles Pinckney Sumner, ca. 1795-1796

Interleaved second-edition copy of Robert Treat Paine's poem "The Invention of Letters" with handwritten excerpts of 18th century poetry copied by Charles Pinckney Sumner. The excerpts appear to be verses alluded to, or emulated, by Paine in the poem. For example, Paine's verse includes "Beneath the shade, which Freedom's oak displays" and Sumner on the opposite page quoted Alexander Pope's poetry, "Beneath the shade a spreading beech displays." The excerpts include poetry by Alexander Pope, James Thompson, Robert Dodsley, William Falconer, William Hayley, Samuel Rogers, Richard Brinsley Sheridan, Thomas Gray, and John Denham.