In this paper we study the following nonlinear Maxwell's equations, epsilon
E-t + sigma(x, \E\)E = del x H + F, H-t + del x E = 0, where sigma(x, s) i
s a monotone graph of s. It is shown that the system has a unique weak solu
tion. Moreover, the limit of the solution as epsilon --> 0 converges to the
solution of quasi-stationary Maxwell's equations. (C) 1999 Academic Press.