Bibliography%H. Chen, K. Pan, and Y. T. Lee, “Separation of Strontium from Barium Ions by Paperelectrochromatography,” J . Chin. Chem . Soc . Series II 6 , 47 (1959).%H. Hamaguchi, H. Cheng, and Y. T. Lee, “Study of the Radioactivity of Hokutolite,” J . Chin. Chem . Soc . II 9 , 1 (1962).%Y. T. Lee and B. H. Mahan, “Photosensitized Ionization of Alkali Metal Vapors,” J . Chem . Phys . 42 , 2893−2896 (1965).%Y. T. Lee and B. H. Mahan, “Mobilities of Cesium and Rubidium Ion in Their Parent Vapors,” J . Chem . Phys . 43 , 2016−2019 (1965).%W. R. Gentry, E. A. Gislason, Y. T. Lee, C. W. Tsao, and B. H. Mahan, “Product Energy and Angular Distributions from the Reaction of N 2+ with Isotopic Hydrogen Molecules,” Discuss. Faraday Soc . 44 , 137−145 (1967).%W. R. Gentry, Y. T. Lee, and B. H. Mahan, “Charge Transfer between Positive Alkali Ions and Atoms,” J . Chem . Phys . 49 , 1758−1762 (1968).%Y. T. Lee, J. D. McDonald, P. R. LeBreton, and D. R. Herschbach, “Molecular Beam Kinetics: Evidence for Short-Range Attraction in Halogen Atom-Molecule Exchange Reactions,” J . Chem<