Biochemistry 53 English literature 11 Pharmacology and Toxicology 10 Design of Experiments 9 Criticism 7 Chemistry 6 Demography 6 English poetry 6 Experimental design 6 Statistics 6 Biochemical Phenomena 5 Biochemistry-- Biology 5 Encyclopaedias 5 Energy Metabolism 5 History 5 LEHNINGER PRINCIPLES OF BIOCHEMISTRY 5 Mass media and the environment 5 Poetry 5 Biochemistry-- Histochemistry-- Cytochemistry 4 Communication in the environmental sciences 4 Enzymes 4 Mathematics 4 Metabolism 4 Microbiology 4 Parasitology 4 Research 4 Social Sciences 4 Social service 4 Solid state chemistry 4 Agricultural engineering 3