Transversals, Harmonic Proportion, Plane Loci, etc. By Horace Deighton, M.A. Revised Edition, with symbols and abbreviations. $1.10.
DODGSON: Obras de Charles L. Dodgson, M.A.
. Libros I. y II. 12mo. 60 centavos.
and his Modern Rivals. Second Edition. 12mo. $1.60.
Mathematica. Parte I. Una nueva teoría de paralelas. 12mo. 75 centavos.
DREW: A Geometrical Treatise on Conic Sections. By W. H. Drew, M.A. Sixth Edition. 12mo. $1.25.
DUPUIS; Elementary Synthetic Geometry of the Point, Line, and Circle in the Plane. By N. F. Dupuis, M.A. 16mo. $1.10.
de Geometría Sólida Sintética. 12mo. $1.60.
DYER: Exercises in Analytical Geometry. By J. M. Dyer, M.A. With Illustrations. 12mo. $1.25.
EAGLES: Constructive Geometry of Plane Curves. With Examples. By T. H. Eagles, M.A. 12mo. $3.25.
EDGAR y PRITCHARD: Note-book on Practical Solid or Descriptive Geometry. Containing Problems