The feelings of the people of Naples cannot be imagined, without some knowledge of the cruelties of the government. The following shocking account of the cruelty practised on a man who was called an American, by the priests of Rome and Italy, is from a letter written in Naples, just after the revolution, by a person who saw him and obtained from him since his own story: BARBAROUS TREATMENT OF A POLITICAL PRISONER. "Amongst the many cases of brutal and illegal imprisonment which have been brought before the public during the last ten days, none has been worse than that of Francisco Casanova, _calling himself an American_. He was confined in San Francisco, and some young men who had formerly been placed in the same prison, though not in the same room, remembering his case, went, on the amnesty being proclaimed, to deliver him; but he was all but naked, and he could not leave until an advocate called Arene, who has acted with great benevolence, sent him some clothes, and has since received him in his house and fed him. Last night I went to see him, and I cannot tell you whether indignation against this most Christian government or compassion for the victim was the strongest feeling. 'When he entered my house,' said Arene, 'he was supported by two persons, for he was unable to walk. He looked like a ghost.' 'Where am I?' he exclaimed, as he looked confusedly around; and well he might, after six years and a half of confinement from all intercourse with man. But I give you his own description of his sufferings, as nearly as possible in his own words, premising merely that there were witnesses of all that I relate, in Arene himself, a Neapolitan friend, and a foreign consul.