P.A. Kumar, R.P. Sharma, and V.S. Malik, The Insecticidal Proteins of Bacillus thuringiensis. J.H. Litchfield, Microbiological Production of Lactic Acid. C. Sasikala and C.V. Ramana, Biodegradable Polyesters. S. Singer, The Utility of Strains of Morphological Group II Bacillus. R.J. Wodzinski and A.H.J. Ullah, Phytase. Chapter References. Subject Index. Contents of Previous Volumes.