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.

[The following comprises the original Abstract, which will be significantly revised.] >>> These are notes, sketches, memoranda, etc., made while Lyman directed the geological survey of Japan, 1873-1879, with reports on petroleum resources, copper, coal, iron, and gold mines, oil, mineral springs, and other mineral resources of the Japanese archipelago. There are data on the Japanese, Chinese, Ainu, and French languages, and on Japanese manners and customs, wit and humor, gardening, painting, measurements, swords, etc. Notes and data on the life, travels, and publications of Bernard Varenius. Notes collected for Lyman's Vegetarian Diet and Dishes. Materials on the geology of New Jersey, Ohio, Pennsylvania, Virginia, Iowa, Colorado, New Mexico, and West Virginia; and on coal and iron fields in those states and elsewhere. Manuscripts of articles on instruments for boring wells, theodolites for mining and civil engineers, other surveying instruments, etc. >>> Of particular note is Lyman's period of study in Europe, where he attended the Imperial School of Mines in Paris, France (1859-1861), and the Royal Academy of Mines, Freiberg, Germany (1861-1862). There are about eleven notebooks for this period, written in English, French, and German, that contain: lecture notes, travel observations, comments on geology, mines and mining, railroads, with sketches of machinery, etc. There are a large number of letters (ca. 7,000 items), 1850-1917, from and to Lyman, on personal and business affairs.