Furthermore, even the intense cold did not make the swamp passable except by the roadway because warm springs here and there prevented the ice from freezing sufficiently strong to bear the troops. The German gunners noted too that their shots fell practically without effect, plunging quietly into the mud to a great depth so that they did not even throw up earth or mud. The result was that the 42-centimeter monsters were hastily withdrawn after a few trial shots and the bombardment was continued with a battery of 28-centimeter coast defense guns, an Austrian motor battery, a 30.5-centimeter mortar and some other heavy batteries. The fire rose to considerable intensity in the last days of February and the first days of March. On the 3d of March the Russians in their official report dwelt on the fierceness of the bombardment and its ineffectiveness. On the 16th they reported that the Germans were pushing several of their batteries up into closer range, as they had recognized the uselessness of shooting from a greater distance and on the 18th they stated that the fire was falling off. On the 22d, finally, they reported that beginning with the 21st the Germans had been withdrawing their heavy batteries. They added that a 42-centimeter mortar had been damaged by the Russian fire, and that "not a single shot of these mortars has reached the fortress, not a redoubt has been penetrated. The superiority of the artillery fire evidently rests with us. The German attack was not only far removed from placing the fortifications of Ossowetz in a critical position, it did not even succeed in driving our infantry out of the field works." On the 27th of March there was a resumption of the bombardment on a small scale and another effort began on April 11 with some heavy guns, ending in an attempted advance which was repulsed without difficulty by the Russians. * * * * * CHAPTER XLI RUSSIAN RAID ON MEMEL