History 84 Philosophy 57 Women 39 India 38 Biotechnology 37 History and criticism 34 Physiology 33 Hormones 32 Medicinal plants 30 Social conditions 29 Literature 27 Feminism 26 Microbiology 24 Criticism and interpretation 23 Economics 23 Education 22 Politics and government 22 Political aspects 21 Motion pictures 20 India-economic development and growth-- Economic planning-- Production economics 19 Hormone Research 18 Economic conditions 17 Social aspects 17 Historiography 16 Plant physiology 16 Management 15 Mathematics 15 Political science 15 Recent progress in medicinal plants -- Indexes--- Medicinal plants -- Research -- Indexes-- Materia medica, Vegetable -- Research -- Indexes 15 Sociology 15