The relative number of plant hairs (trichomes) per unit leaf area, or cotton plant pubescence, has received attention recently because of its possible effect on cleanability of cotton. In previous research at Lubbock, Texas, seventy-nine strains of cotton from multiple crosses between Acala and High Plains varieties plus ten strains consisting of 3 commercial varieties, Lubbock dwarf, 5 isolines of Texas marker 1, and a closed capsule Gossypium Herbaceum L. strain were grown, harvested and ginned in a controlled experiment. The data from this experiment was reexamined to determine the effects of plant hair density on lint cleanliness properties.