We examine the intrinsic spin-dependence of the dominant gg→gggg subprocess contribution to four-jet production in polarized proton-proton
collisions using helicity amplitude techniques. We find that the partonic
level, longitudinal spin-spin asymmetry, a^LL, is intrinsically large
in the kinematic regions probed in experiments detecting four isolated jets.
Such events may provide another qualitative or semi-quantitative test of the
spin-structure of QCD in planned polarized pp collisions at RHIC.Comment: 9 pages, LaTeX, 2 uuencoded postscript files attache