1 Table of Contents: “...The Role of Protozoa in Nutrient Cycling and Energy Flow -- 1. Introduction -- 2. Nutrient Dynamics...”

2 Table of Contents: “... in the Atmospheric Sulfur Cycle -- 1. Introduction -- 2. Microbial Production of Volatile Sulfur Compounds -- 3...”

3 Table of Contents: “... -- 5 Lignin Metabolism and the Carbon Cycle: Polymer Biosynthesis, Biodegradation, and Environmental...”

4 Table of Contents: “... in the Phosphorus Cycle -- 1. Introduction -- 2. Transformations of the Phosphorus Compounds in Plant and Animal...”