Mathematical exercises: Containing, I. The Principles of the Orthographick Projection of the Sphere; with the Application thereof to the Solution of some Problems in Astronomy, and the Demonstration of certain Theorems of great Use in Spherical Trigonometry. II. The Principles of the Stereographick Projection, and the Application thereof to the Describing of the Representations of the Circles, &c. of the Sphere on the Planes of different Great Circles. III. Sixteen new Problems, to be answered in the Second Number. By John Turner. No. I.
Turner, John, 1717- | Date: M.DCC.L. [1750][-53?]