From Cairo

Cairo, Jíin. 30. Tho stenmer Magenta, f rom New Orleana lliu 24'h, has arrived. She reporta all quiet ?long the river A steamer has arrivud nt New Orleanc frora Mobile Biv, bringing h rumor of tho evaonation of Mobile. The report was recoivod from a flug-ship ou the 30th. A Natchez lo'ter of the 2'3rd to the New Orlemis Delta has the followin iiow-! from tho traua Mississippi departine::t: The encmy aro fortify'mg Grand Ecorse. They have ari entire división B'ntioiiöd there. One división oPrebel Oavttlry has bean seut to Texa-í lutely, with ordf'fa to be disiuoiinted for infautr service, Kirby Smith's headquarters are still at Shreveport, but thero is no considerable body of troops garrigoLiing them. The niain bo3y ot' Price's oíd army.reported to be at Fulton, on the upper Red rivo' near the border oí the Iudian country, suffering all the horrors of cold and nakedness, Laving como back from their can paign ?ery poorly supplied witli 'he necessaries they auticipated ra getting there. Fattan's and Parsons, brigades are stationed at Camden, Arkausas. Tla-y corapose all the troups of Priec's army that have returned to the place from where the Missouri expedition originally et out. DesertionS are very fiequent from tbt-ir demornlized forcen. The Meinphis Bulletin suys he steamers Chijipewa and Anne Jacoba, two of the fleet which went up the Aikansas River to 'Port Smith, were cipturcd afid burned at Whi'e Oak Shoal. Two othere wero damiged, but ruanuged to escapo.