We present an update of the top quark analysis using kinematic
techniques in ppbar collisions at sqrt s = 1.8 TeV with the Collider
Detector at Fermilab (CDF).  We reported before on a study which used
19.3 pb^-1 of data from the 1992-93 collider run, but now we use a larger
date sample of 67 pb^-1.  First, we analyse the total transverse energy
of the hard collision in W + >- 3 jet events, showing the likely presence
of a ttbar component in the event sample.  Next, we compare in more detail
the kinematic structure of W + >- 3 jet events with expectations for top
pair production and with background processes, predominantly direct W + jet
production.  We again find W + >- 3 jet events which cannot be explained in
terms of background, but show kinematic features as expected from top.  These
events also show evidence for beauty quarks, in agreement with expectations
from top, but not compatible with expectations from backgrounds.  The findings
confirm the observation of top events made earlier in the data of the 1992-93
collider run.