An impartial representation of the conduct of the several powers of Europe, engaged in the late general war : including a particular account of all the military and naval operations : from the commencement of hostilities between the crowns of Great Britain and Spain, in 1739, to the conclusion of the general treaty of pacification at Aix la Chapelle, in 1748 : to which are added, letters between Monsieur Voltaire and the author, relative to this work, and to the subject of history in general.