[Letters to Editor]

Abstract

IN connexion with the assignment of quantum numbers for electrons in molecules (R. S. Mulliken, Phys. Rev., 32, 186; 1928), it is important, in considering a molecule in a specified electronic state, to know in what electronic states the atoms or ions resulting from its adiabatic dissociation would be (R. S. Mulliken, Phys. Rev., November 1928). I have thus been led to a study of dissociation products and heats of dissociation for various molecules, and among other results have reached conclusions essentially the same as those stated in the accompanying letter by Prof. Birge. Only a few points concerning the nitrogen molecule will be given here; further discussion will be found in the articles cited.