THREE:The Prussian kingdom, which thus fell to Frederick by divine right, consisted of an assemblage of duchies, marquisates, principalities, and lordships, comprising an area of nearly fifty-seven thousand square miles, being about the size of the State of Michigan, and very similarly situated as to climate and soil. It was unfortunately not a compact country, as several of the states could only be reached by passing through the territories of other powers. The annual revenue amounted to a little over six million dollars. There was also in the treasury a sum, which Frederick William had saved, of about seven million dollars. The army consisted of seventy-six thousand men, in the highest state of discipline, and abundantly furnished with all the materiel of war.On the 2d of September, 1758, Frederick, advancing from the smouldering ruins of Cüstrin, pushed forward his columns by forced marches for the rescue of his brother, who was nearly surrounded by vastly outnumbering foes. While upon this rapid march an Austrian courier was captured, with the following dispatch, which he was bearing from General Daun to General Fermor, whose army of Russians had just been so terribly beaten by Frederick upon the field of Zorndorf, but of which fact the Austrian general had not yet been apprised:
