b. Early federal land measures ([219]-[221]).
c. The Homestead act ([368], [432]-[445]).
d. Irrigation and reclamation ([434]-[436], [523]-[525]).
e. Conservation of natural resources ([523]-[526]).
6. Legislation advancing human rights and general welfare (see [Suffrage]).
a. Abolition of slavery: civil and political rights of negroes ([357]-[358], [373]-[375]).
b. Extension of civil and political rights to women ([554]-[568]).
c. Legislation relative to labor conditions ([549]-[551], [579]-[581], [590]-[591]).