Dissolved Organic Matter in Natural Waters . . 1 Photoinduced and Microbial Generation of Hydrogen Peroxide and Organic Peroxides in Natural Waters . . 139 Photoinduced Generation of Hydroxyl Radical in Natural Waters . . 209 Photoinduced and Microbial Degradation of Dissolved Organic Matter in Natural Waters . . 273 Colored and Chromophoric Dissolved Organic Matter in Natural Waters . . 365 Fluorescent Dissolved Organic Matter in Natural Waters . . 429 Photosynthesis in Nature: A New Look . . 561 Chlophylls and their Degradation in Nature . . 687 Complexation of Dissolved Organic Matter with Trace Metal Ions in Natural Waters . . 769 Impacts of Global Warming on Biogeochemical Cycles in Natural Waters . . 851 Editors Biography . . 915