On February 13, several small probing attacks were carried out against the Confederate defenses, essentially ignoring orders from Grant that no general engagement be provoked. On the Union left, C. F. Smith sent two of his four brigades (under Cols. Jacob Lauman and John Cook) to test the defenses along his front. The attack suffered light casualties and made no gains, but Smith was able to keep up a harassing fire throughout the night. On the right, McClernand also ordered an unauthorized attack. Two regiments of Col. William R. Morrison's brigade, along with one regiment, the 48th Illinois, from Col. W.H.L. Wallace's brigade, were ordered to seize a battery ("Redan Number 2") that had been plaguing their position. Isham N. Haynie, colonel of the 48th Illinois, was senior in rank to Colonel Morrison. Although rightfully in command of two of the three regiments, Morrison volunteered to turn over command once the attack was under way; however, when the attack began, Morrison was wounded, eliminating any leadership ambiguity. For unknown reasons Haynie never fully took control and the attack was repulsed. Some wounded men caught between the lines burned to death in grass fires ignited by the artillery.