Reports on progress in physics 92 History 71 Economics 66 Philosophy 37 Marxian economics 34 Socialism 33 Hormones 32 Communism 28 PROGRESS IN INORGANIC CHEMISTRY 25 Physiology 23 Education 21 Economic development 20 Science 20 Medicinal plants 19 Hormone Research 18 India 18 Indian economy 18 Marxism 18 Pharmacology and Toxicology 18 Progress 18 Psychology 17 Chemistry 16 Microbiology 16 Politics and government 16 Biophysics-- Biology 15 Dialectical materialism 15 PROGRESS IN PHYSICAL ORGANIC CHEMISTRY 15 Recent progress in medicinal plants -- Indexes--- Medicinal plants -- Research -- Indexes-- Materia medica, Vegetable -- Research -- Indexes 15 Biography 14 Sustainable development 14