The history of Poland [electronic resource] : in several letters to persons of quality, giving an account of the antient and present state of that kingdom, historical, geographical, physical, political and ecclesiastical ... : with sculptures, and a new map after the best geographers : with several letters relating to physick / by Bern. Connor ... who, in his travels in that country, collected these memoirs from the best authors and his own observations ; publish'd by the care and assistance of Mr. Savage.