Genetics 26 Microbiology 21 Statistics 16 Physiology 13 Biochemistry 12 Plant breeding 12 Psychology 12 Extension 11 Farm Machinery 11 Parasitology 11 MCGraw-HILL ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY 10 Milk products 10 Cytology 9 Entomology 9 Botany 8 Fruit production 8 Geology 8 Nutrition 8 SCIENCE 8 Frequency distributions 7 Functions of real variables-- Analysis-- Mathematics 7 Milk production 7 Probabilities 7 milk constituents 7 Bacteria 6 Planting equipments 6 Animal Nutrition 5 Animal reproduction 5 Education 5 Electrical engineering 5