History 369 History and criticism 110 England 99 Agriculture 94 Land use 86 English literature 84 Economics 77 Land tenure 77 Politics and government 67 Land reform 66 Education 63 Environmental economics-- Land economics 63 Rural development 59 Criticism and interpretation 54 Wetlands 54 Tribes 53 Land economics 52 Women and literature 48 Literature 47 India 44 Land reforms 43 Population 42 Scheduled tribes 41 Environmental ecology-- Island ecology-- Desert Ecology 40 Communication 38 Criticism 38 English drama 38 Finance 38 Social conditions 38 Industries 37