Attention, troop! : Capt. Archambault formerly of Bucks County, and for many years commander of the Union Troop, invites his old companions in arms, friends, and all patriotic young men, to rally under his command in a troop of cavalry, to assist in maintaining the honor of our flag and the perpetuity of the Union. Rally, freemen, rally! Capt. Archambault and his lieutenants will be at Kulp's Hotel, in Doylestown, on Saturday, the 17th of August, where they will be happy to see the captain's old friends and all others desirous of serving their country in her hour of need. / Captain Joseph Archambault, late of the 18th Regiment P.V. 1st Lieut. Henry C. Paxson, late of the 19th Regiment P.V. 2d Lieut. James M. Cox. Head quarters, People's Hotel, 106 S. 6th St., Philada.