Olinthus Gregory

Olinthus Gilbert Gregory (29 January 17742 February 1841) was an English mathematician, author, and editor. Provided by Wikipedia

1
by Gregory, Olinthus
Published 1799
printed by Bye and Law, St. John's Square, for T. Conder, Bucklersbury; sold also by the author, at Cambridge

2
by Gregory, Olinthus
Published 1817
Baldwin, Craddock, and Joy