  A number of arguments purport to show that quantum field theory cannot be
given an interpretation in terms of localizable particles. We show, in light of
such arguments, that the classical $\hbar\to 0$ limit can aid our understanding
of the particle content of quantum field theories. In particular, we
demonstrate that for the massive Klein-Gordon field, the classical limits of
number operators can be understood to encode local information about particles
in the corresponding classical field theory.
