Euclid, Simson Robert, "The elements of Euclid viz. the first six books, together with the eleventh and twelfth. ... Also, the book of Euclids Data, in like manner corrected. By Robert Simson, ...”, Edinburgh, J. Nourse, London, and J. Balfour, Edinburgh, 1772. Ex-libris cachet (Russian). Complete with 3 folding engravings and numerous engr. in text. Full leather, panelled with decorations in gilt, raised bands & decorations on spine. Chipped upper right part of title page, rubbed boards. Robert Simson was a Scottish mathematician and professor of mathematics at the University of Glasgow. This work, was for long the standard text of Euclid in England.