Communicated March 7, 1929 The Problem.-The translation of Dirac's theory of the electron
into general relativity is not only of formal significance, for, as we know, the Dirac equations …

The relativity quantum theory of an electron moving in a given electromagnetic field,
although successful in predicting the spin properties of the electron, yet involves one serious …

This book is written by a philosopher for other philosophers and for that section of the
reading public who buy in large quantities and, no doubt, devour with great earnestness the …

TTEMPTS to evaluate radiative corrections to elec-tron phenomena have heretofore been
beset by divergence difficulties, attributable to self-energy and vacuum polarization effects …

Einstein's Generalised Theory of Relativity has accomplished notable results in the region of
astronomical mechanics, but for the moment it seems difficult to go further in this direction …

In the theory of the electromagnetic field without charges, the potentials are not fixed by the
field, but are subject to gauge transformations. The theory thus involves more dynamical …

The Lorentz model of the electron as a small sphere charged with electricity, possessing
mass on account of the energy of the electric field around it, has proved very valuable in …

In a previous paper by the author* it is shown that the general theory of quantum mechanics
together with relativity require the wave equation for an electron moving in an arbitrary …

I.-The following question, which provides an illuminating applicatioii of general relativity to
electrodynamics, has been put to me by Professor Oppenheimer. Considertwo concentric …

In this article, I shall develop a theory that encompasses gravitation, electricity, and mass in
a thorough form that appeared as a brief sketch in Proc. Nat. Acad. Sci., April 1929. Various …