SEARCH Articles Figures Tables Determination of transition metals in nature Heavy metals in natural waters Holding On-The Nature of Bonding in Metal Complexes Metal concentrations in natural Metal natural Metals in the Natural World Metals, nature Observations on Metals in Natural Systems Trace metals in natural waters Transition-Metal-Catalyzed Stereoselective Oxidations in Drug and Natural Product Synthesis Use of Transition Metal-Catalyzed Cascade Reactions in Natural Product Synthesis and Drug Discovery