Interesting, too, is a letter written on Sept. 5 by Ernest II., Duke of Saxe-Altenburg, who, besides being a Lieutenant of the Prussian Guard and Chief of the Eighth Infantry Regiment of Thuringia, is Duke of Saxe-Altenburg (since 1908), of Juliers, Cleves and Berg, Engern, and Westphalia; Landgrave in Thuringia, Margrave of Misnia, Count of Henneberg, Marche, Ravensberg, and Seigneur of Ravenstein and Tonna. In 1898 the Duke married Princess Adelaide of Schaumburg-Lippe, thus uniting two great German houses. His own house was started in 1655 by Ernst, Duke of Saxe-Hildburghausen. His letter follows: We have lived through a great deal and done a great deal, marching, marching, continually, without rest or respite. On Aug. 10 we reached Willdorf, near Jülich, by train, and from the 12th of August we marched without a single day of rest except Aug. 16, which we spent in a Belgian village near Liége, until to-day, when we reached ----. These have been army marches such as history has never known. The weather was fine, except that a broiling heat blazed down upon us. The regiment can point back to several days' marches of fifty kilometers ----. Everywhere our arrival created great amazement, in Louvain as well as in Brussels, into which the entire ---- marched at one time. At first we were taken for Englishmen in almost every village, and we still are, because the inhabitants cannot realize that we have arrived so early. The Belgians, moreover, in the last few days almost invariably set fire to their own villages. On Aug. 24 we first entered battle; I led a combined brigade consisting of ----. The regiment fought splendidly, and in spite of the gigantic strain put upon it, it is still in the best of spirits and full of the joy of battle. On that day I was for a long time in the sharpest rifle and artillery fire. Since that time there have been almost daily skirmishes and continual long marches; the enemy stalks ahead of us in seven-league boots. On Aug. 26 we put behind us a march of exactly twenty-three hours, from 6:30 o'clock in the morning until 5:30 the next morning. With all that, I was supposed to lead my regiment across a bridge to take a position guarding a new bridge in course of construction; but the bridge, as we discovered in the nick of time, was mined; twenty minutes later it flew into the air. After resting for three hours in a field of stubble, and after we had all eaten in common with the men in a field kitchen--as we usually do--we continued marching till dark. The spirit among our men is excellent. To-night I am to have a real bed--the fourth, I believe, since the war began. To-day I undressed for the first time in eight days. * * * * *