iest movements of primitive man; the types of forces which figure
in any migration; and the various forms in which a migration may
occur. This has been done with the further intention of endeavoring to
imbue the mind at the outset with the idea that this Negro migration
is not very radically different from the past movements of civilized
man, and that, like them, it occurred in obedience to certain laws
which were operating in the environment of the migrants. If this
object can be accomplished, little doubt is entertained that it will
do much toward affording a clearer and more comprehensive view of the
movement than could be otherwise obtained.

FOOTNOTES:

[1] This dissertation was presented by Henderson H. Donald to the
Faculty of the Graduate School of Yale University in candidacy for the
degree of Master of Arts, May, 1920. Since then it has been
considerably revised and augmented.

In the preparation of this work the following books were used: James
Bryce, _The American Commonwealth_, Volume II; F. S. Chapin,
_Introduction to the Study of Human Evolution_; H. P. Fairchild,
_Immigration_; H. E. Gregory, A. G. Keller, and A. L. Bishop,
_Physical and Commercial Geography_; A. G. Keller, _Societal
Evolution_; R. F. Hoxie, _Trade Unionism in the United States_; E. J.
Scott, _Negro Migration during the War_; W. G. Sumner, _Folkways_; F.
J. Warne, _The Immigration Invasion_; C. G. Woodson, _A Century of
Negro Migration_.

The following magazine articles were also helpful: Ray S. Baker, "The
Negro Goes Forth" (_World's Work_, 34: 314-17, July, 1917); W. E. B.
DuBois, "The Migration of Negroes" (_The Crisis_, 14: 63-66, June,
1917); B. M. Edens, "When Labor is Cheap" (_Survey_, 38: 511,
September 8, 1917); H. A. Hoyer, "Migration of Colored Workers"
(_Survey_, 45: 930, March 26, 1921); G. E. Haynes, "Negroes Move
North" (_Survey_, 40: 115-22, May 4, 1917) and "Effect of War
Conditions on Negro Labor" (_Academy of Political Science_, 8:
299-312, February, 1919); T. A. Hill, "Why Southern Negroes Don't go
South" (_Survey_, 43: 183-85, November 29, 1919); H. W. Horwill, "A
Negro Exodus" (_Contemporary Review_, 114: 299-305, September, 1918;
_Literary Digest_, 54: 1914, January 23, 1917); "The South Calling
Negroes Back; An Exodus in America" (_Living Age_, 295: 57-60, October
6, 1917); "The Negro Migration" (_New Republic_, 7: 213-14, January 1,
1916; _New York Times_, November 12, 1916, 11, 12: 1; September 4,
1917,