Collected works History 47 Biography 34 Korea 32 Zoology 24 English 20 English literature 10 Jawaharlal Nehru 8 United States 7 Malayalam literature 4 Mathematics 4 Sex customs 3 Bio-organic chemistry 2 Communism 2 Elastic theory 2 Literature 2 Literature Malayalam 2 Literature Malayalam Collection 2 Novel 2 Romanticism 2 Solid state physics 2 American 1 Arabic literature 1 Archetype (Psychology) 1 Biological physics 1 Collections 1 Cytology 1 Discolocations in crystals 1 Dislocationd in crystals 1 Dislocations in crystals 1