  We reexamine Chew's method for extracting the $\pi NN$ coupling constant from
np differential cross section measurements. Values for this coupling are
extracted below 350 MeV, in the potential model region, and up to 1 GeV. The
analyses to 1~GeV have utilized 55 data sets. We compare these results to those
obtained via $\chi^2$ mapping techniques. We find that these two methods give
consistent results which are in agreement with previous Nijmegen
determinations.
