[ASTRONOMY]. BRYAN, MARGARET. A compendious System of Astronomy, in a course of Familiar Lectures... London, 1799. Many engraved plates -- BRYAN. Lectures on Natural Philosophy: the result of many Years' Practical Experience of the Facts Elucidated... London, 1806. Profusion of engraved plates. Together 2 volumes, 8vo and 4to, contemporary calf, condition varies. (2)