History 211 Congresses 146 Maori (New Zealand people) 110 Periodicals 103 Economic conditions 101 Biography 93 Description and travel 78 Politics and government 75 Accounting 63 Education 62 Agriculture 57 Research 56 Economic aspects 48 Fiction 48 Social conditions 43 Geology 41 Social life and customs 41 Bibliography 40 Economic policy 34 Standards 34 Forests and forestry 33 Law and legislation 29 Study and teaching 29 Management 28 Commerce 26 Directories 26 Statistics 25 Foreign relations 22 Pictorial works 22 Industrial relations 18