The Spanish Government was represented in New Orleans by Don Juan Callejon. Early in the summer the strictness of our quarantine of vessels from Cuba produced some ill feeling on his part, which manifested itself in the refusal of a clean bill of health to the steamer Roanoke, about to leave New Orleans for Havana. In response to a request from the General, Don Juan called immediately at the office; but owing to the unfortunate circumstance of his entire ignorance of the English language, and the consequent necessity of conversing through the medium of an interpreter, a serious misunderstanding ensued, and the General, supposing the Consul to be contemptuously setting our Government at defiance, threatened to send him out of the country; but afterwards learning that their difference had arisen purely from misinterpretation, and that Senor Callejon had proved himself a patriot and hero in his country's service, the General, with the honest admiration which one brave man always feels toward another, took especial pains to render their intercourse, both official and personal, as agreeable as might be. And to show the Spanish consul that in the matter of quarantine he was inspired by no dislike toward his Government, he placed more rigid restrictions, if possible, on American vessels from infected ports than on the vessels of Spain. To Senor Ruiz, the acting consul of the Republic of Mexico, who had the singular consular virtue of sympathizing warmly with the free North, the General's attentions were something more sincere than the hackneyed "assurances of distinguished consideration" so necessary to diplomatic correspondence and intercourse. Indeed, I doubt if any of the foreign commercial agents at New Orleans would claim that they ever had cause to complain against General Butler on account of any personal grievance. * * * * *