The Valence-State Energy of the Bivalent Oxygen Atom.

turally unrelated dye, fluorescein. The results obtained with this series of compounds are especially striking because the dyes differ only in the nature of the alkyl groups. Still more pronounced effects would be expected in studies of compounds having greater structural differences. Many obvious applications and extensions of these ideas are now being investigated and detailed results will be published later. Of particular interest are an investigation of the possibility that optical isomers can be separated with such adsorbents and an attempt to demonstrate "specific catalysis," analogous to the action of enzymes, by specific adsorbents for the reactants or products of various reactions.