A journal comprising an account of the loss of the brig Commerce, of Hartford, (Con.) James Riley, master, upon the western coast of Africa, August 28th, 1815 also of the slavery and sufferings of the author and the rest of the crew, upon the desert of Zahara, in the years 1815, 1816, 1817 : with accounts of the manners, customs and habits of the wandering Arabs : also, a brief historical and geographical view of the continent of Africa