1 86 Bibliography 



ginia. Phelps-Stokes Studies, Univ. of Va., 1917. 

 Thom, W. H. T. : The Negro of Litwalton, Va., and the 



Negro of Sandy Spring, Md. Bulletins, U. S. Dept. 



Labor, 1901. 

 Woofter, T. J. Jr. : The Negroes of Athens, Georgia. 



Phelps-Stokes Studies, No. 1, Univ. of Ga., 1913. 



4. — Migration 



U. S. Department of Labor, Special Bulletin, 1919 — Negro 

 Migration in 1916-17. A symposium of individual re- 

 ports on conditions in different states, with descriptions 

 Qof the movement and its causes. 

 Carnegie Foundation : Preliminary Economic Studies of 

 the War, No. 16. Negro Migration During the War. 

 Compiled by Emmet J. Scott. New York, 1920. 

 Woodson, Carter G. : A Century of Negro Migration. 

 Assoc, for Study of Negro Life and History, 1918. A 

 general historical study. 



5. — Statistics 



Moore, Henry L. : Forecasting the Yield and Price of Cot- 

 ton. New York: The McMillan Company, 1917. 



Pearson, Karl : The Grammar of Science. London : A. C. 

 Black, 1911. 



Yule, G. U. : An Introduction to the Theory of Statistics. 

 London: C. Griffin and Co., 5th Ed., 1919. 



