The elements of Euclid [electronic resource] : With select theorems, out of Archimedes. By the Learned Andrew Tacquet. To which are added, practical corollaries, shewing the uses of many of the propositions. By William Whiston, M.A. Mr. Lucas's professor of the mathematicks in the University of Cambridge. In this sixth edition, is added an appendix of practical geometry, with forty new figures, and a brief and independent demonstration of certain select and most useful propositions. By S.F.