Homogeneous coordinates for use in colleges and schools / W.P. Milne. Milne, William P. (William Proctor), 1881- Coordinates. QA556 .M5 1924 516.5 MIH Preface dated: July, 1910. Bibliography: p. [xi]-xii. London : E. Arnold & co., 1910. 1910. 1910 Text xii, 164 p. : eng