By the time the retreating Russians had reached the Wisloka they had to some extent recovered from the first shock of surprise, and were better able to attempt a determined stand against the overwhelming onrush of the Austro-Germanic troops. Ivanoff hurriedly sent reenforcements for Dmitrieff and Ewarts which included the Caucasian Corps of General Irmanoff from the Bzura front. The heavy German guns belched forth with terrible effect, and the Russians could not reply at the same weight or distance. Bayonets against artillery means giving odds away, but the attempt was made. With a savage fury that seems to belong only to Slavs and Mohammedans--fatalists--the Russians hurled themselves against the powerful batteries and got to close quarters with the enemy. For nearly twenty minutes a wild, surging sea of clashing steel--bayonets, swords, lances and Circassian daggers--wielded by fiery mountaineers and steady, cool, well-disciplined Teutons, roared and flowed around the big guns, which towered over the lashing waves like islands in a stormy ocean. A railway collision would seem mild compared with the impact of 18,000 desperate armed men against a much greater number of equally desperate and equally brave, highly-trained fighters. But machinery, numbers and skillful tactics will overcome mere physical courage. The Russian avalanche was thrown back with terrific slaughter; the Caucasian Corps alone lost over 10,000 men, for which, it is estimated, they killed and wounded quite as many. More remarkable still was the fact that they captured a big battery and carried off 7,000 prisoners. For five days the storm raged backward and forward across the river; during the more violent bombardments the Russians left their trenches to be battered out of shape and withdrew into their shelter dugouts; when the enemy infantry advanced to take possession, the Russians had returned to face the charge. Whereas cool, machinelike precision marks the German soldier in battle as on the parade ground, an imperturbable obstinacy and total disregard of mortal danger characterizes the Russian.