The dielectric constant of atomic hydrogen in undulatory mechanics

In a recent paper J. H. Van Vleck(1) used the expressions for the energy of a hydrogen atom in an electric field, derived by I. Waller(2) and the writer,(3) for computing the dielectric constant. The interesting method he applies is analogous to that used by J. H. Jones(4) for the same purpose in Bohr's quantum theory, and is outlined in section 1 of the following paper by Evelyn F. Aylesworth.(5)