The following orders, beariag date VTasliiDgton, April 27i'i, havo brfa.i i.-sucd iroin the War Deptirtment : 1, Tbc Military Djpartment of Washington vvill include iho District of Columbio, accordÍDg to its original bouodary, Fort Washington ood the country udjiiueat, and the State of Maryland as lar Bladensburgh, inclusivo, ÖoJ. J. K F. Manstield, InspectorGeaeral, is aasigned lo thu oominand. Headqoortera. Washington Oity. 2. A new Military Dapurtrñent, to lied th Departir.eht of Annapdlis, Headqu iptera t ihat et,', will irulii'.lj tlio cjuulry for twenly miles on eacli de ot the railroad iVom Anuapolisto tho city f Washington, as tut a.s Bladunsburgb, Md. lrigadier-üeneral ü. F. ButWr, Mus8aobu-etta WlunteM's, is aseigned to the command. A third Department, called tho Department of Peoosylvaaia, vi!i include that State, the Sfate oí Oelaware, aud all ot' Miryland not embraood io the foregoiog D.partinents. Major PattersoB to commaad, Headquurtet'a at PhUadelphit, or any othw he nmy temporarily occupy. 4. Brevet Col. C. &. Smith, bai8f been relieved by Col. Munfiald, will repair to Fort OolumbnH, N. Y., ari resume thadttties.of the Superintendent ot' the Recruiting Service, 5. Fort Adama Rhode Iskind, hereby placed teraporarily undar tho control of tho Secretary of (he Navy, tor the purposes of the Naval Acudeniy dow ;it Annapulis, Md.