  We discuss the possibilities for extracting information on the parton density
functions and the strong coupling constant from one- and two-jet events at the
Fermilab TEVATRON. First we study the inclusive two-jet triply differential
cross section $d^3\sigma/dE_Td\eta_1d\eta_2$. Different $\eta_1$ and $\eta_2$
pseudorapidity regions are directly related to the parton momentum fractions at
leading order and the shape of the triply differential distribution at fixed
transverse energy $E_T$ is a particularly powerful tool for constraining the
parton distributions at small to moderate $x$ values. Second, we consider the
one-jet inclusive transverse energy distribution where there is impressive
agreement between theory and experiment over a wide range of transverse energy.
By equating the next-to-leading order theoretical prediction for a given set of
input parton densities with the published CDF data, the evolution of the strong
coupling constant at scale $\mu$ can be studied between $\mu \sim 50~$GeV and
$\mu \sim 400~$GeV. This evolution is in agreement with QCD and corresponds to
$\alpha_s(M_Z)$ = 0.121 for the MRSA parameterisation.
