Geometry, Analyt-
Gaskin, Thomas. **E.200a.15 The geometrical construction of a conic section
subject to five conditions of passing through given points and touching given straight lines, deduced from the properties of involution and anharmonic ratio, with a variety of general properties of curves of the second order. Cambridge (Eng): J. Deighton. 1852. viii, 84 pp. 2 folded plates. Sm 8°.