Mason, Charles, 1728-1786

Charles Mason was an astronomer and surveyor. He was elected to the American Philosophical Society in 1768.

From the description of Journal during the survey of the Pennsylvania-Maryland line, 1763-1768. (American Philosophical Society Library). WorldCat record id: 122316422

From the description of Papers, 1750-1815. (American Philosophical Society Library). WorldCat record id: 122380135

From the guide to the Charles Mason papers, 1750-1815, 1750-1815, (American Philosophical Society)

Charles Mason (Oakridge Lynch, Gloucestershire, April 1728– Philadelphia, October 25, 1786) was an English astronomer who made significant contributions to 18th-century science and American history, particularly through his involvement with the survey of the Mason-Dixon line, which came to mark the division between the northern and southern United States (1764-1768).

From the guide to the Correspondence and accounts of the Mason and Dixon survey, 1758-1769, 1758-1769, (American Philosophical Society)

Physicist and historian of science Thomas Darlington Cope received his A.B. (1903) and Ph.D. (1915) from the University of Pennsylvania; he became an instructor and later professor there from 1906-1952. He also studied at the University of Berlin (1912-1913) under Max Planck.

From the guide to the Thomas Darlington Cope papers, ca. 1909-1964, Circa 1909-1964, (American Philosophical Society)

Thomas Darlington Cope was a physicist and a historian of science.

From the guide to the Thomas Darlington Cope papers, 1945-1957, 1945-1957, (American Philosophical Society)

Charles Mason was an astronomer and surveyor; he was elected to the American Philosophical Society in 1768.

From the guide to the Journal during the survey of the Pennsylvania-Maryland line, 1763-1768, 1763-1768, (American Philosophical Society)