The theory of Centrifugal forces, continued; and aplyed to the Cases of the planets; and from this Centrifugal force, Mr. Winthrop confuted the hypothesis of vortices, from this also arises the spheroidal form of the earth.
“April 10, 1754.,” Founders Online, National Archives, https://founders.archives.gov/documents/Adams/02-01-02-0009-0001-0007. [Original source: The Adams Papers, Earliest Diary and Autobiography of John Adams, June 1753 – April 1754, September 1758 – January 1759, ed. L. H. Butterfield. Cambridge, MA: Harvard University Press, 1966, p. 63.]