We present a measurement of the cross section for production of two or more
jets as a function of dijet mass, based on an integrated luminosity of 86
pb(-1) collected with the Collider Detector at Fermilab. Our dijet mass spe
ctrum is described within errors by next-to-leading order QCD predictions u
sing CTEQ4HJ parton distributions, and is in good agreement with a similar
measurement from the Dempty set experiment.