...is brigade had the advance of the centre on the Manchester road. At nine o'clock A. M. he met the rebel pickets eight miles from Murfreesboro and drove them and all their reserves on a run through Hoover's Gap , a long, narrow, winding hollow through a chain of hills dividing the waters of Stone and Duck Rivers, and about seventeen miles from Murfreesboro. Two thirds through the gap the rebels had fortifi...