| Geometry. Projective,
Benny, Leonard Berger. **E5129.225 Plane geometry: an account of the more elementary properties of the conic sections, treated by the methods of co-ordinate ge- | ometry, and of modern projective geometry with applications to practical drawing. — London. Blackie & Son, Ltd. 1922. vi, (1), 336 pp. Portraits. Diagrams. Autograph facsimile. 19% cm., in 8s.
This card was printed at the Boston aS Public Library, March 10, 1923.
. M5684 — Conic sections. — Geometry. Analytical. — Geometry. Projective.