HARRISBURG; June 20.—Reliable advices indicate that the rebel force has increased largely about Hagerstown. They have eighteen pieces of cannon. A detachment of the First New York Cavalry captured a number of prisoners yesterday, and 122d Pennsylvania also captured several.
Rebel pickets are within five miles of Greencastle, and a cavalry force advanced to Mercersburg and captured horses and property. Gov. Curtin visited the camp to-day, and was enthusiastically received by the New York regiments present. He also reviewed the Blue Reserves, of Philadelphia, and that regiment will be mustered in to-morrow. The fortifications are nearly completed. No fear is felt that the city will be captured.
The Evening Star, Washington, DC
