5. Ulrich B. Phillips, “The Origin and Growth of the Southern Black Belts,” American Historical Review 11 (July 1906): 798-816; reprint.


Analysis of demographic trends in the ante-Bellum South, especially as they related to the use of gang labor on large plantations. The article contains tables, charts, and a map based on the 1850 census showing areas in which slaves made up 50% and 75% of the population, respectively.