A compendious system of astronomy : in a course of familiar lectures, in which the principles of that science are clearly elucidated, so as to be intelligible to those who have not studied the mathematics ; also trigonometrical and celestial problems, with a key to the ephemeris, and a vocabulary of the terms of science used in the lectures, which latter are explained agreeably to their application in them / by Margaret Bryan. by Bryan, Margaret, active 1815 | saved.works