History 376 Bridges 247 Public lands 146 Social conditions 120 Politics and government 119 Law 100 Law and legislation 98 African Americans 95 General 83 Public buildings 83 Land tenure 79 HISTORY 73 Elections 69 SOCIAL SCIENCE 65 Race relations 64 Indians of North America 54 State & Local 54 Courts 41 Contested elections 40 Judges 40 Lawyers 40 Midwest (IA, IL, IN, KS, MI, MN, MO, ND, NE, OH, SD, WI) 40 Railroads 36 Electronic books 35 POLITICAL SCIENCE 35 Claims 34 Land titles 34 Economic conditions 33 Histoire 32 Topographical surveying 32