The Famous Church of St. John.-By What Means it was Decorated.-Grand Mosaic Floor.-Roman Catholic Ceremonials.-Remarkable Relics.-Chapels of the Languages.-A Devout Artist.-Church Treasures.-Thieving French Soldiers.-Poetical Justice.-The Hateful Inquisition.-Churches of Valletta.-A Forlorn Hope.-Heroic Conduct.-A Maltese Pantheon.-A Rival Dome to