We present a study of the kinematics of W + >- 3 jet events
produced in ppbar collisions at sqrt s = 1.8 TeV.  We describe several
techniques used to compare the observed events with expectations both from
direct W + jets production and from production and decay of heavy top quark
pairs.  We also study the kinematic features of the events used to measure
the top mass.  Finally we show the results obtained looking for top candidates
in the channel with 6 jets in the final state.