A preliminary measurement of the differential dijet cross section
obtained from ppbar collisions at sqrt s = 1.8 TeV by the CDF collabortion is
presented.  The D0 and CDF dijet mass distributions are also presented.
Measured distributions are compared to NLO QCD predictions.  The effect of
changing the renormalization scale and the choice of the parton density
functions on the predicted cross sections is shown.  Finally, limits for new
particle production are presented based on the dijet mass and angular
distributions.