City Readers Digital Historic Collections at the New York Society Library
Robert Simson
The Elements of Euclid,;The errors, by which Theon, or others, have long ago vitiated these books, are corrected and some of Euclid's demonstrations are restored : Also, The book of Euclid's Data, in like manner corrected
Glasgow: Glasgow: Printed and sold by A. Foulis, printer to the university; sold also by Robert Cross, near the college; James Duncan, Dunlop and Wilson, and by J. and W. Shaws Booksellers, 1781.