An historical account of the several plagues that have appeared in the world since the year 1346. With an enquiry Into the present prevailing opinion, that the plague is a contagious distemper, capable of being transported in merchandize, from one country to another. In which the absurdity of such notions is exposed, and the arguments that have been made use of to support them, refuted. To which are added a particular account of the yellow fever, shewing its periodical appearance to be similar to the plague. Also observations on Dr Mackenzie's letters; read before the Royal Society on this subject. And an abstract of Capt. Isaac Clemens's voyage in the Sloop Fawey, from their arrival in the Mould of Algiers, to the sinking of her, on a supposition that the plague was on board her. Taken from his log-book