We present high E_T jet measurements from CDF at the Fermilab
Tevatron Collider.  The inclusive jet cross section at sqrt s = 1800 GeV with
approximately 5 times more data is compared to the published CDF results,
preliminary D0 results, and next-to-leading order QCD predictions.  The sum
E_T cross section is also compared to QCD predictions and the dijet angular
distribution is used to place a limit on quark compositeness.

The inclusive jet cross section at sqrt s = 630 GeV is compared with that at
1800 GeV to test the QCD predictions for the scaling of jet cross sections
with sqrt s.  Finally, we present momentum distributions of charged particles
in jets and compare them to Modified Leading Log Approximation predictions.