Criticism and interpretation 20 Dissertations 15 History and criticism 12 Dissertations, Academic 11 History 10 English language 8 English literature 6 Politics and government 6 English drama 5 Study and teaching 5 Drama 4 Economic conditions 4 Foreign relations 4 Social life and customs 4 Social structure 3 Study and teaching (Secondary) 3 Communication 2 Criticism, Textual 2 Data processing 2 Design and construction 2 Discourse analysis 2 Distillation apparatus 2 Economic aspects 2 Economic policy 2 Education 2 Elections 2 English poetry 2 Foreign speakers 2 Historical drama, English 2 In literature 2