Experiments were conducted to obtain information that would aid in developing methods and modifications for combing and carding lint cotton on saw-cylinder lint cleaners. The new procedures would improve cleaning efficiency while maintaining fiber quality. This improved cleaning would occur at the standard cleaning rate. A modified saw-cylinder lint cleaner was used to study the combing and carding actions. Lint-cleaner treatments studied involved normal and reverse feed-plate combing in combination with carding brushes. Among the combing and carding treatments tested, differences in the classer's grade, lint foreign-matter, and many of the High Volume Instrument (HVI) measurements were marginal and not significant. Reversing the feed plate on the lint cleaner appeared to affect the fiber measurements more than use of a carding brush. Reversing the feed plate decreased the cleaning efficiency slightly but gave somewhat longer staple and HVI length. For the treatments compared, the reversed feed plate without a carding brush gave the lowest nep count. These results are now being used to examine and design new combing and carding mechanisms that improve lint-cleaner efficiency by more evenly feeding and distributing fibers among the saw-cylinder teeth.