Elements of plain and spherical trigonometry together with the principles of spherick geometry, and the several projections of the sphere in plano. The whole Demonstrated and Illustrated with Useful Cases and Examples. By J. Harris, D.D.F.R.S - Harris, John 1667?-1719 (printed for D. Midwinter, at the three Crowns in St. Paul's Church-Yard, 1723)