  We report a measurement of the differential cross section for the $\gamma n
\to \pi^- p$ process from the CLAS detector at Jefferson Lab in Hall B for
photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles
($\theta_{c.m.}$) between 50$^\circ$ and 115$^\circ$. We confirm a previous
indication of a broad enhancement around a c.m. energy ($\sqrt{s}$) of 2.2 GeV
at $\theta_{c.m.}=90^\circ$ in the scaled differential cross section, $s^7
{\frac{d\sigma}{dt}}$. Our data show the angular dependence of this enhancement
as the scaling region is approached in the kinematic region from 70$^\circ$ to
105$^\circ$.
