...commenced shelling my line from several batteries about nine o'clock that night, and the picket lines in my front opened fire at a quarter to two o'clock the following morning. The skirmishers from McGowan 's brigade, who covered the works held by my command, were driven in at a quarter to five o'clock, and my line was pierced by the enemy in strong force at the ravine in front of the right of the Thirt...