Law and legislation 7,772 History 3,040 Appropriations and expenditures 2,371 Finance 1,640 Politics and government 1,612 Government policy 1,448 Legal status, laws, etc 1,342 Prevention 1,227 Research 1,116 Foreign relations 1,035 Indians of North America 989 Environmental aspects 962 Management 947 Officials and employees 926 Armed Forces 871 Education 794 Diplomatic relations 775 Economic conditions 750 Evaluation 738 Economic aspects 726 Pollution 718 Registration and transfer 697 Land titles 696 Public buildings 665 Services for 630 Standards 590 Legal status 587 Taxation 577 POLITICAL SCIENCE 576 General 569