DESCRIPTIVE Geometry affords the practical means of dealing with geometry in three dimensions, in the same manner that Practical Geometry, that is to say, the intelligent use of drawing and of ...

it is true, Whitehead's two tracts on the “Axioms of Projective Geometry” and “Axioms of Descriptive Geometry ... 2: Plane Geometry, Conics, Circles, Non-Euclidean Geometry.