The young gentleman's course of mathematicks Containing the more useful and easy elements of arithmetick, geometry, trigonometry, mechanicks, opticks, astronomy, chronology, dialling. In three volumes. By Edward Wells, D.D. rector of Cotesbach in Leicestershire - Wells, Edward 1667-1727 (Printed for James Knapton, at the Crown in St. Paul's Church-Yard, 1723)