During the reporting period the final construction stages of the Cd: Hg experiment was reached. The major accomplishments were in the experimental areas where the vapor supply oven was completed, the guide magnet assembly tested, and tests on the electron beam energy deposition with the Febetron 736 were started. In terms of discharge/kinetic modeling, the matter of recombination ''smoothing'' discussed in the last Quarterly was further investigated. The degree of axial electron density ''smoothing'' arising from recombination was found to depend on both the electron-ion recombination and molecular ion formation rates: the slower the molecular ion formation rate relative to the electron-ion recombination rate, the lesser the degree of smoothing. Recombination ''smoothing''can still be significant in the CD: Hg experiment, although a precise estimate is difficult to achieve since the effect depends strongly on the rates (and their temperature dependence) which are not well known.