"Livre de caisse," notebook used as a scrapbook for pasted-in newspaper clippings (now removed).

Detailed notes from Alexander Wilson's "American ornithology," including item numbers from Peale's museum. Also two loose pages in vol. 1 attributed to John Abbot; Case for 2 volumes says "George Ord -- Birds of North America. Original manuscript."

This volume includes definitions and problems on parabola, ellipse, and hyperbola.

These contain a few notes and memoranda by Van Vleck, but the bulk of the collection is letters to and from him. Correspondents include Raymond T. Birge, Gerhard H. Dieke, Paul A. M. Dirac, Edwin C. Kemble, and Robert S. Mulliken.

A. Sager's brief notes provide an outline for a course of chemistry lectures, ca.1810. The notes, in Swedish, include sections on electricity and phlogiston.

This volume includes prescriptions for various complaints, such as epilepsy, hemorrhoids, and ringworm.

This is a circa eighteenth-century copybook with problems and illustrations in algebra and geometry. There are sections on extraction of the cube root, geometrical definitions of lines and angles, and first rudiments and preparatory problems in plane geometry.

This volume, written by an unknown author, describes general principles of physics, with numerous sketches illustrating the text. There are a few notations in Spanish by Juan Bastolleros.

This volume begins with lecture number 23 (1826 December 13) and ends with number 59 (1827 February 21) of Silliman's lectures at Yale College.

This collection consists of a rough and finished draft of Coates' lecture, which was delivered before the Phrenological Society of Philadelphia. In it he included a review of Boston professor John C. Warren's work on the nervous system.

This small volume records excerpts from British natural philosophy and scientific journals, written sometime after 1799. It covers a wide range of subjects, from astronomy to zoology.

The first volume contains mathematical problems, which appear to be college exercises (1814); the second volume is an essay on the projection of the sphere and spherical trigonometry, including an appendix on astronomy (1812); and the third volume is a lecture on natural philosophy, apparently prepared for delivery [n.d.].

The notebook includes descriptions of land surveys in Wayne County, Pennsylvania, and notes in various hands on early history and settlers there. The maps include boundary descriptions, and there are copies of two deeds.

Notes kept by the Yale undergraduate John Austin Stevens on 20 lectures on natural philosophy delivered by Jeremiah Day during the fall, 1812. Includes lectures on gravitation, mechanics, and hydrostatics (hydrology), the last including theories of rivers, springs, and groundwater.

Anthropometric data from various Native American groups, language materials from the Northwest Coast and Mexico, typescripts of papers, a diary of a field trip to Baffin Island (N.W.T.), Canada, and genealogical data

These classroom notes, taken by an unidentified student, present the state of knowledge in natural philosophy, especially astronomy, during these years. There are mentions of many contemporary scientists, and much on Newton and Newtonian philosophy.

These are notes of lectures and experiments made at Paris as a student at the Jardin des Plantes. The volumes are entitled: Botany & Agriculture (with a large portion actually on electrical machinery); Trees and Shrubs; Chemistry, Physics, Mineralogy; and Zoology.

Notebook of Henry Dilworth Gilpin for a course on natural philosophy at the University of Pennsylvania, ca.1819, with additional notes on mathematics. The professor for both courses was probably Robert Maskell Patterson.

Louis Hasbrouck was in his last year at Princeton in 1796-1797 when he attended the course of chemistry lectures given by John Maclean. In only his second year at Princeton, Maclean was rapidly becoming known for introducing the latest currents in chemical theory, including the system of Antoine Laurent Lavoisier, and he was one of the first Americans to insist that students take part in active experimentation. Louis Hasbrouck was in his final year at Princeton in 1796-1797 when he attended John Maclean's lectures on chemistry. His notebook from the second half of that course includes a detailed record of the lectures from January 24-March 14 and June 22-24, 1797, covering Maclean's discussion of the chemistry of metals, "chemical combination," combustion, and botanical chemistry. Although his notes are not complete, Hasbrouck was enrolled at a singularly interesting period in the history of American chemistry. This was only the second time that Maclean had offered his course, in which he introduced the new chemical system of Lavoisier, and it includes a relatively complete version of Maclean's most important lecture, "Of combustion." This devastating attack on Joseph Priestley and phlogistic theory appeared in print in 1797 as Two Lectures on Combustion: Supplementary to a Course of Lectures on Chemistry.

This volume contains medical notes by Wistar, including observations on yellow fever and arguments to prove its foreign origin, facts relative to the progress of the fever in 1797, the infection and death of Colonel Van Emburgh, the infection of the crew of the ship "Deborah" and of the Durham boat (1802), an account of the diseases which afflicted the family of James Hammar in Montgomery County (Pa.), facts relating to the typhus fever of 1812-1813, case histories (1796-1803), temperature chart (1758-1759, 1760), and a thermometrical journal (1760-1765) kept by Charles Norris and copied by Wistar from notes in possession of Joseph Parker Norris.