Analytical Microbiology, Volume II is a six-chapter work that covers the significant changes and improvements made in the theory and practice of analytical microbiology. The first chapter is devoted to the theoretical aspects of assaying of specific compounds. These topics are followed by discussions of the theoretical and practical aspects of diffusions assays, as well as the theoretical developments of photometric methods of assay, including their improvement resulting from automation. A chapter explores the assay methods for various antibiotic groups. Another chapter discusses the advances in assay technology and analytically important interrelations among the folic acid complex. The last chapter describes a simple diffusion method designed for the assay of certain amino acids in a wide variety of samples. This book will prove useful to analytical microbiologists.