Our illustration shows how and why the motive-power of the Expeditionary Force, the brain of the Army, is often to be found below-ground. Mr. John Dakin, writing of this drawing, made by him from a sketch which he made at the Front, says: "Throughout the war, the enemy has displayed considerable skill in locating and shelling any buildings selected for occupation by our Staff. Various methods of countering these tactics have been devised. On at least one occasion, headquarters was established in a subterranean apartment, which was not merely bomb-proof, but a comfortable retreat from the weather. Here, by lamplight, plans were worked out; scraps of information pieced together with the aid of maps without risk of interruption from the enemy."--[_Drawn by John Dakin from his Sketch made on the Spot._] __________________________________________________________________________ 36--THE ILLUSTRATED WAR NEWS, DEC. 30, 1914.--[Part 21] [Illustration: AFTER THE ENEMY HAD BEEN ALLOWED TO COME WITHIN POINT-BLANK RANGE OF THEIR SILENT FOE:] Determined night-onslaughts by infantry have been, according to a letter from Petrograd, a notable feature of the German tactics in the battles on the Vistula, particularly in the fighting that has been taking place between Lowicz and the river. By day, the Germans, we are told, were persistently aggressive, continuously launching attacks against various points of the Russian lines, while the Russians remained on the defensive. With the coming of darkness, however, regularly, night after night, the Germans redoubled their efforts everywhere, taking advantage of the obscurity to fling forward dense swarms and columns of men in massed formation, to storm the entrenched Russian position, apparently at any cost. They failed every time, it would appear, beaten back after literally a massacre. The Russian tactics, it is interesting to recall, were __________________________________________________________________________ THE ILLUSTRATED WAR NEWS, DEC. 30, 1914--[Part 21]--37 [Illustration: RUSSIAN INFANTRY SMASHING A GERMAN NIGHT-ATTACK IN MASSED COLUMNS, IN A BATTLE ON THE VISTULA.]