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192 as to the total effectives (90,000 regular and militia) in the country, and on the information furnished from the same source as to the complete evacuation of the Atlantic States by the United States military forces and their concentration at Pittsburg.

Before the movement of troops disclosed the plan of campaign, strong advance forces were thrown forward to hold the bridges on the line of the Pennsylvania Railroad across the Alleghanies. The main force moved forward on April 16th by rail and motor car, on parallel roads, until it was halted at the great stone bridge of the Pennsylvania Railroad across the Susquehanna, near Harrisburg, three arches of which had been blown up by the United States Army Engineers. The Germans ultimately crossed by temporary trestle bridging, and by a pontoon bridge, which they threw across the river. Sharp