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James Mills Peirce

James Mills Peirce (May 1, 1834[1] – March 21, 1906[2]) was an American mathematician and educator.[1] He taught at Harvard University for almost 50 years.[3]

James Mills Peirce

May 1, 1834

March 21, 1906(1906-03-21) (aged 71)

Career[edit]

Like his father, James Mills Peirce became a professor of mathematics and astronomy at Harvard.[1][7] He was first a Tutor in Mathematics, then a proctor at Harvard.[3] He was a preacher in Boston and Charleston, South Carolina, but eventually returned to academia, first as Assistant Professor of Mathematics in 1861.[3] He was promoted to University Professor of Mathematics in 1869, then to Perkins Professor of Astronomy and Mathematics—the same position his father once held—in 1885. He was head of the Graduate Department at Harvard from 1872 to 1895 (becoming its dean when it was converted to the Graduate School). He was the Dean of the Faculty of Arts and Sciences from 1895 to 1898.[3]


Among his publications are Mathematical Tables Chiefly to Four Figures (1896)[7] and A Text-Book of Analytic Geometry; On the Basis of Professor Peirce’s Treatise (1857).[1] He was considered a world authority on quaternions.

Personal life[edit]

Peirce was an early proponent of homosexuality, writing extensively about gay love. The book, Sexual Inversion, by influential British sexologist Havelock Ellis contains in-depth case histories. In 1897 it featured a letter by “Professor X.” Circumstantial but suggestive evidence has identified the letter writer as Harvard math professor, James Mills Peirce. He wrote, “[W]e ought to think and speak of homosexual love, not as 'inverted' or 'abnormal' . . . but as being in itself a natural, pure and sound passion.” [8]