  The structure of hadronic jets depends not only on the dynamics of QCD but
also on the details of the jet finding algorithm and the physical process in
which the jet is produced. To study these effects in more detail we calculate
the jet cross section and the internal jet structure in e+e- annihilations and
compare them to the results found in hadronic collisions using the same jet
definition, the cone algorithm. The different structures of the overall events
in the two cases are evident in the comparison. For a given cone size and jet
energy, the distribution of energy inside the cone is more concentrated near
the center for jets from e+e- collisions than for jets from hadronic
collisions.
