JNevv ïork, June 27. The HeraWs Havaoa correspondent snys : The British Consul at Havana has made a demand for the aurrender oí the blookade runner Wren, captured and run into Key West by her crevy. Gen Breckinridge acd Lis aecompnnying fugitiva rebels were still in Havana. Some of the waaltby secession sympathizers have shovvn Breckinridge great attontion, and oifar to present him with a house if ha would remain aaiong them. It was ruinored, howevor, that be intendod to go to Spain. The ex rebel ram Stonowall alias Olindce still remainod in Havana harbor, but no one doubted that she would ultimnloly bü givon up to our government.