...r enemy, all his rear lines had closed up, and the broad mass began to appear even below me on my left front to the south of Steinwehr's knoll. Then it was, after we had been fighting an hour, that Sickles 's and Pleasonton's guns began to be heard, for they had faced about at Hazel Grove obliquely toward the north-west, and were hurrying artillery, cavalry, and infantry into position to do what they co...