...o cross the Susquehannah, menacing the communications of Harrisburg with Philadelphia, and to co-operate with General Ewell, acting as circumstances might require. Accordingly, on the 29th, I moved Heth 's division to Cashtown, some eight miles from Gettysburg, following on the morning of the 30th with the division of Pender. This order, under which Hill was acting, was evidently the one for the ge...