Using information derived from a study characterizing types of pigment-coated papers (the subject of the previous article), a second study investigated the effects of various treatments on selected examples ( the subject of the present article). To evaluate the effects of some solvent application techniques on pigment-coated papers, two projects were designed. The first project was a preliminary investigation, testing papers hand-coated with traditionsl recipes, to subjectively compare the effects of different stain removal solvents (water, ethanol, acetone, and toluene) and application techniques (poultice, immersion, and suction disk). Findings, based in SEM imaging, indicate that some application techniques and some colvents can cause microfissures or loss in coating material. The second project was a statistical study using contemporary machine-coated papers to provide reproducible data on the effect of two treatments which have been used for cleaning dirt, stains, or accretions from pigment-coated papers, namely aqueous immersion and blotter-poulticing, followed by air- or blotter-drying. Findings evaluated changes detected by SEM imaging and measured by color (CIE L*a*b*) and gloss (85° angle). SEM imaging revealed more surface disruption in boltter- poulticed and blotter-dried samples. THe glossiest paper underwent the greatest unit reduction in gloss following all treatments. -- CAL