Pennsylvania Railroad Co., demand of, for labor, [69], [135].

Persuasion, use of, to check migrations, [79].

Pfister-Vogel Co., employment of negro labor, [114-115], [117].

Philadelphia:

migrations to, [57-58], [135];

prejudice, [135];

attitude of negroes in, toward migrants, [136];

wages, [136];

riots, [136];

housing, [137-139];