**E.5119.8 Cockshott, Arthur, and Walters, Frank Bridgman.
A treatise on geometrical conics in accordance with the syllabus of the Association for the improvement of geometrical teaching.
London: Macmillan and co. 1889. vi, (1), 205, (2) ppe Sm. 8° °
“Walters, Frank Ss Bridgman, Jt.au.= Conic sections.