BT WHICH THEOK, OR OTHERS, HAVE LONG AGO VITIATED THESE BOOKS, ARE COR- BY ROBERT SIMSON, M. D. Emeritus Professor of Mathematics in the University of Glasgow. TO THIS EDITION ARE ALSO ANNEXED, ELEMENTS OFPLJUtEAXO SPHERICAL TRIGONOMETRY. PUBLISHED BY ROBERT DESILVER, No. 110, WALNUT STREET, AND THOMAS DESILVER, No. 253, MARKET STREET. J. Maxwell, Printer. 1821. |