Embracing a View of Their Commerce, Agriculture, Manufactures, Internal Improvements, Slave and Free Labor, Slavery Institutions, Products, Etc., of the South : Together with Historical and Statistical Sketches of the Different States and Cities of the Union : Statistics of the United States Commerce and Manufactures, from the Earliest Periods, Compared with Other Leading Powers : the Results of the Different Census Returns Since 1790, and Returns of the Census of 1850, on Population, Agriculture and General Industry, Etc. : with an Appendix