Frederick published his manifesto on the 10th of August, 1744. Early in the morning of the 15th he set out from Potsdam upon this new military expedition. His two eldest brothers, Augustus William, Prince of Prussia, and Prince Henry, accompanied him. The army entered Bohemia in three columns, whose concentrated force amounted to nearly one hundred thousand men. Frederick in person led the first column, the old Prince Leopold the second, and Marshal Schwerin the third. Marching by different routes, they swept all opposition before them. On the 4th of September the combined army appeared before the walls of Prague. Here, as in every act of Frederick’s life, his marvelous energy was conspicuous. The works were pushed with the utmost vigor. On the 8th the siege cannon arrived; late in the night of Wednesday, the 9th, they were in position. Immediately they opened their rapid, well-aimed, deadly fire of solid shot and shell from three quarters--the north, the west, and the east. Frederick, watching the bombardment from an eminence, was much exposed to the return fire of the Austrians. He called upon others to take care of themselves, but seemed regardless of his own personal safety. His cousin, Prince William, and a page, were both struck down at his side by a cannon-ball. On the 16th the battered, smouldering, blood-stained city was surrendered, with its garrison of sixteen thousand men. The prisoners of war were marched off to Frederick’s strong places in the north. Prague was compelled to take the oath of allegiance to the emperor, and to pay a ransom of a million of dollars. Abundant stores of provision and ammunition were found in the city. It was a brilliant opening of the campaign. The impetuous Frederick made no delay at Prague. The day after the capture, leaving five thousand men, under General Einsiedel, to garrison the city, he put his troops in motion, ascending the right bank of the Moldau. It would seem that he was about to march boldly upon Vienna. Wagons of meal, drawn by oxen, followed the army. The heavy artillery was left behind. The troops were forced along as rapidly as possible. They advanced in two columns. One was led by Frederick, and the other by young Leopold. The country through which they passed was dreary, desolate, barren in the extreme--a wild waste of precipitous rocks, and bogs, and tangled forest. The roads were wretched. No forage could be obtained. The starved oxen were continually dropping, exhausted, by the way; the path of the army was marked by their carcasses. It was but sixty miles from Prague to Tabor. The march of Frederick’s division led through Kunraditz, across the Sazawa River, through Bistritz and Miltchin. It was not until the ninth day of their toilsome march that the steeples of Tabor were descried, in the distant horizon, on its high, scarped rock. Here both columns united. Half of the draught cattle had perished by the way, and half of the wagons had been abandoned.