Washington, June 2. The Department of Virginia is extended lo i'nclude t lint part oí Virginia eonthofthu liappabarnock, and cast oí i ríe nitirond from Frederic.ksborg to Rii-hmond, Petersburg and -Walton. - Major General Géorgo B. McClellan, United States artny1, wHÍ nPsume eom! mand thereof and et all tho United Sities forces withín i's liinits. Mt'jor Get-eral Jn. E W"qó! is ar. signed tö the cominand of the MiddJe DeparlineOt, and will proceed to I3altimoru to a.'sume cominand theeof. Major Genend John A. Dix, IJ. S. V., wi!; proceed immediátely to Fort Monroe to assume cnminand at that pnint, reporting to M jor General McClellan l'ur orclern. By oïder of the Secretary oi War.