Title: Measurement of the e+e- -> W+W-g Cross Section and direct Limits on
Anomalous Quartic Gauge Boson Couplings in e+e- interactions at
sqrt(s) at or above 189 GeV.

A preliminary measurement of the cross section for the process e+e- ->
W+W-gamma is presented using data collected with the L3 detector at
centre-of-mass-energy at or above 189 GeV.
Selecting W+W- events containing an isolated photon the cross
section, defined within kinematic cuts imposed on the photon, is
measured.  Limits on Anomalous Quartic Couplings are derived at 95\%
confidence level and combined with those obtained from nunugammagamma
production.  These results are preliminary.


Parallel session: 5
Plenary Talks   : 6a