An introduction to projective geometry and its applications; an analytic and synthetic treatment
Arnold Emch's 1905 college textbook on projective geometry, published in New York by John Wiley & Sons for university mathematics students. The 101 line diagrams show triangles, conics, tangent pencils, and projected points labelled with letters and primes, drawn in fine black line with dashed construction lines and occasional hatched fills on tinted paper.
