Lecture Notes in Mathematics 354 Mathematics 99 Physics 46 Microbiology 42 Pharmacology and Toxicology 39 Cytology 38 Polymer science 38 CHROMOSOMA 36 Pest control 35 Genetics 34 Number theory-- Algebra-- Mathematics 34 Pathology 33 Computer science 31 Topological and related algebra and groups 30 Groups-- Algebra-- Mathematics 29 Congresses 28 Physiology 27 Botanical science 26 Functions of complex variables-- Analysis-- Mathematics 26 Organic chemistry 26 Plant physiology 25 Ecology 24 Histology 24 Differential equations-- Analysis-- Mathematics 23 Algebra-- Mathematics 22 PROTOPLASM 22 Polymers 21 Quantum theory 21 Algebraic topology 20 Biology 20