Titles in this Collection have been validated by:- <br> <pre> <b>1. Dr. L. Venkateswar Rao</b> Head Department of MIcrobiology Faculty of Science Osmania University Hyderabad -500 007 (AP) <b>2. Dr. Prashant Mishra</b> Department of Biochem. Engg. and Biotechnology Indian Institute of Technology New Delhi – 110016 </pre>