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One handwritten notebook with mathematical equations determining the relative positioning of the sun, moon, and earth, during lunar and solar eclipses. Includes information on lunar eclipses that occurred February 1841; November 1, 1844; March 8, 1849 and solar eclipses on: March 1858, May 1854 and July 18, 1860. Also includes other mathematical problems related to astronomy.

Notebook containing handwritten mathematical problems, solutions, and diagrams. Also inset are mathematical problems and solutions clipped from a newspaper and a report card from Alexandria Boarding School in Alexandria, Virginia.

One handwritten notebook with select passages and mathematical diagrams from Newton's Philosophiæ Naturalis Principia Mathematica. A note in the text indicates that this was likely copied from an 1826 edition of the work.

Three notebooks kept by Thomas P. Stowell with mathematical problems, solutions, and notes.