Contents: Preface. 1. Biochemistry. 2. Chemical bond and element. 3. Environmental chemistry. 4. Molecular vibration of water chemistry. 5. Soil microbiology and biochemistry. 6. Atom. 7. Molecule chemistry. 8. The atomic molecular theory. 9. Microbiology. 10. Virus and microbiology. 11. Soil microbiology. 12. Environmental microbiology. 13. The concept of effective microorganisms. 14. Microscope. 15. Food microbiology. 16. Industrial microbiology. 17. Microbiology research in food and agriculture. Bibliography. Index.

The present book has been written in view of the students those who are related to microbiology and microchemistry etc Its increasing scope has really enhanced its significance and it appears not possible to present all of it in a single book. The book is comprehensive but not lengthy.

There has been constant endeavour on part of author to furnish maximum substance. It has also been attempted to condense the matter as far as possible.