wages, [14-16], [83];

demand for labor in North, [14], [17-18], [28-29], [102], [111];

lack of educational facilities, [18-19], [81], [83];

treatment in courts, [19-20], [22], [83-85];

fee system and street tax, [20-21];

traveling accommodations, [21-22];

lynchings and mob violence, [18-19], [22], [79-81], [83], [166-167];

prejudice, [24-25], [83];

between cities in North, [117];

as expressed through the press, [152-174].