The first shock occurred on the morning of the tenth, in the neighborhood of Heilsberg; for Bennigsen had sent a considerable number of his troops back over the river to feel the enemy. The Russians were slowly driven across the plain, fighting fiercely as they went, until by six in the evening they reached the heights near the town, which had been intrenched. Here they turned, and for five hours hurled back one advancing French column after another until eleven o'clock at night, when, fortunately for the attacking troops,--so at least thought Savary, who was with them,--it grew too dark, even near the summer solstice and in those high latitudes, to fight longer. Next morning Napoleon woke after his bivouac and looked to see his enemy gone, as at Pultusk and Eylau. But this time a repetition of that pleasant experience was denied him. His losses had been so serious the day before that he spent the eleventh in manoeuvers, further concentrating his army before Heilsberg, and despatching Davout to throw himself between Lestocq and Bennigsen, thus turning the latter's right and checking the former, if all went well. This movement determined the character of the whole campaign. It had the desired effect, and on the morning of the twelfth the trenches in front of him were empty. The Russians had stolen away, and for two days they steadily retreated down the Alle in the general direction of Koenigsberg, until on the evening of the thirteenth they reached Friedland. Bennigsen had expected to retreat still farther, hoping to reach Wehlau, and cross to the right bank of the Pregel for a strong defensive position before Koenigsberg. Lestocq with the Prussians was well forward on the extreme right toward that place. But at three in the morning of June fourteenth the head of Lannes's column appeared before Friedland, and the Russian commander, supposing he had to do with a single division, turned, and crossing to the left bank of the Alle, passed through Friedland in order to meet his enemy in the open. His evident intention was to follow the Napoleonic plan of overwhelming the attacking divisions one by one as they arrived. His right wing was stationed in the rear of the hamlet of Heinrichsdorf, his left rested on a forest known as the Sortlack. When his arrangements were completed it was nine o'clock in the morning. What information he had is unknown, but what he did remains inexplicable. Starting to seize Heinrichsdorf, he was, after a short conflict, repulsed; for Lannes had stretched his line far to the left for the same purpose, and had been reinforced by Mortier's vanguard. Bennigsen withdrew about noon to his first position, and stood there in idleness for three long hours, exchanging useless volleys with his foe. Having his entire force already on the field, he remained absolutely inactive while the enemy formed their line. In respect to his having massed his forces before the French could form, his position was exactly parallel