A metric nonsymmetric unified theory of gravitation and electromagnetism is
studied. By a suitable modification of the Einstein part of the Bonnor Lag
rangian, it is shown that the antisymmetric part of the metric tensor can b
e made to describe a massless spin-1 field obeying Maxwell's equations in t
he flat space linear approximation and thus making its identification to th
e electromagnetic field strength tensor a possibly consistent procedure. Th
e theory is shown to be free of unphysical ghost-negative energy radiative
modes even when expanded about a curved Riemannian background. The Einstein
-Maxwell theory is contained in the first approximation of the held equatio
ns about a curved general relativity background. The field equations contai
n only the symmetric part of the connection, making them as close as possib
le to those of general relativity. The equations of motion of charged parti
cles are shown to contain the Coulomb force in the lowest nontrivial order
of approximation.