The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .. (1847)
Euclid, Byrne, Oliver · London, W. Pickering · leaf 260
(B. 6. pr. 2), and by compofition (B. 5. pr. 18) ; but ■•-•-» contains as often as contains the required part (conft.) ;is the required part. Q. E. D. 228 BOOK VI. PROP. X. PROB. … and draw
Geometry
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
