WITH NOTES, CRITICAL AND EXPLANATORY. TO WHICH IS ADDED, LETTERS DESCRIPTIVE OF TRAVELS THROUGH WEST AND SOUTH BARBARY, AND ACROSS THE MOUNTAIN'S OF ATLAS; ALSO, FRAGMENTS, NOTES, AND ANECDOTES; SPECIMENS OF THE ARABIC EPISTOLARY STYLE,By JAMES GREY JACKSON, RESIDENT UPWARDS OF SIXTEEN YEARS IN SOUTH AND WEST