"My Lord,--This morning, about seven o'clock, Monsieur Oppen, an officer in the Guards, arrived here from the Prussian army. He had no letters, only a scrap of paper without date, which he was directed to deliver to the queen-mother, in which was written with a pencil, in the king's own hand, that his troops had beaten the Austrians, _platte couture_, that he reckoned his loss about two thousand, and that of the Austrians at four thousand men." This was a hard-fought but indecisive action. The Austrians, under Marshal Browne, were the assailants; and the engagement continued from morning till past midday, when they retreated; but they numbered two-thirds more than the Prussians, their force being nearly seventy thousand to about forty thousand. But a more important success immediately followed. The Saxon army, amounting to sixteen thousand, had been surrounded in their fortified camp at Pirna; the fortifications were so strong that the only hope of reducing them was by famine. To the universal astonishment, they suddenly quitted this impregnable position, and marched into a defile, where they could neither advance nor retreat. The king offered them conditions, which they accepted; and Mitchell, who had waited at Berlin only for the royal permission to join the army, arrived just in time to see the surrender; and what was more curious still, the quiet transfer of their allegiance to the Prussian service. He thus writes-- "_October 21, 1756._ "On Sunday the 17th, the Saxon troops, preceded by their general officers, crossed the Elbe.... Thence they marched into a plain in the neighbourhood, and, after passing between two battalions of Prussian Guards, they were received by the battalions of the Prince of Prussia's regiments, drawn up on the right and left. They were then formed into a hollow square, and had the articles of war read, and the military oath administered to them, in the presence of Prince Maurice of Anhalt-Dessau, or of Prince Ferdinand, the King of Prussia's brother. The soldiers were all armed; but the officers, almost to a man, refused to enter into the Prussian service. "The whole Saxon army consisted of sixteen thousand, of which three thousand were horse and dragoons. The soldiers are extremely well-looking, mostly young men, and do not seem to have suffered for want of provisions during the blockade of five weeks. The cavalry have suffered more--many of their horses are ruined."