This proved a most fortunate respite to the small Union force on Oak Ridge, as, in consequence of it,--the state of things just pointed out,--some hours elapsed before there was any more fighting by the infantry, though the artillery kept up its annoying fire. Meanwhile the two remaining divisions of the First Corps came on the ground. Robinson's was left in reserve at the Seminary, with orders to throw up some breastworks there; Doubleday's, now Rowley's, went into line partly to the right and partly to the left of the troops already there, thus extending both flanks considerably; and at the extreme left, which was held by Biddle's brigade, two companies of the Twentieth New York were even thrown out across the run, into the Harman house and out-buildings, where they did good service in keeping down the enemy's skirmish fire.[38] [Sidenote: Rodes on Union Flank.] Meantime, also, Pender's division had got into line. When formed for the attack it considerably outflanked the Union left. And a little later Rodes was seen coming down the Mummasburg road, or out quite beyond the right of the First Corps. Clearly, the combat just closed was child's play in comparison with what was about to begin. [Sidenote: Oak Hill seized.] These troops gave notice that they were shortly coming into action by opening a sharp cannonade from Oak Hill, the commanding eminence situated just beyond and in fact forming a continuation of Oak Ridge, where the First Corps stood, though separated from it somewhat. This artillery fire from Oak Hill enfiladed the Union position so completely that nothing was left for the right but to fall back to Seminary Ridge, so as to show a new front to this attack. The centre and left, however, kept its former position, with some rearrangement of the line here and there, which had now become a very crooked one. Twenty odd thousand men were thus waiting for the word to rush upon between ten and eleven thousand. [Sidenote: Eleventh Corps comes up.] Before the battle could be renewed, however, the Eleventh Union Corps came up through Gettysburg.[39] Howard, its actual head, was now in chief command of the field, as next in rank to Reynolds. He sent forward Schurz's and Barlow's divisions of this corps to confront Rodes, leaving Steinwehr's in reserve on Cemetery Hill. [Sidenote: Howard calls for Help.] Having preceded his corps to the field, Howard had already notified Meade, too hastily by half, that Reynolds was killed and the First Corps routed--a report only half true, and calculated to do much mischief, as it soon spread throughout the entire army. He also sent off an urgent request to Slocum, who was halted in front of Two Taverns, not five miles off, to come to his assistance with the Twelfth Corps. [Sidenote: Hancock comes to the Front.]