  We present a detailed description of a search for anomalous production of
missing E_T ($\mett$), jets, leptons ($e, \mu, \tau$), b-quarks, or additional
photons in events containing two isolated, central ($|\eta|<1.0$) photons with
$\Et > 12$ GeV}. The results are consistent with standard model expectations,
with the possible exception of one event that has in addition to the two
photons a central electron, a high-E_T electromagnetic cluster, and large
$\mett$. We set limits using two specific SUSY scenarios for production of
diphoton events with $\mett$.
