These notebooks contain lectures or reports on lectures, with corresponding watercolor and pen-and-ink drawings. There are volumes on geology (Great Britain and elsewhere), natural history, mechanics (sketches of levers, valves, and weighing machines), and steam engines (sketches of mechanics of boilers).

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.

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.

This is a collection of Cope's articles, papers, notes, lectures, notebooks, and some correspondence. There is much on his research pertaining to Charles Mason and Jeremiah Dixon, and other topics in the history of science on which he wrote. The collection includes lecture notes and three bound notebook volumes on mechanics from his study at the University of Berlin under Max Planck from 1912 to 1913. There are 11 additional bound volumes, all relating to physics, including: Minutes of meetings of the Department of Physics, University of Pennsylvania (1910-1919), two volumes on the history of physics, and a volume of data on the radiometer as a measurer of electric current. The collection also contains notes on electric circuit theory lectures (1924-1925) by J.R. Carson, notes on lectures on relativity (1921) by Albert Einstein, lectures by W.F.G. Swann (1928), and information about the Pennsylvania Academy of Science, and on radiation (1909). There is significant correspondence from Lionel G. Dixon and Victor Englehardt.

This collection includes correspondence to and from Boskovic; a travel journal in Europe; and a large number of manuscripts on astronomy, hydrography, hydro-mechanics, mathematics, geometry, mechanics, and optics; and a volume of poetry.