Excerpts from the report Summary: This study evaluates the effect of tandem lint cleaning on the grade of cotton and hale values at different levels of premiums and discounts, and the effects of this cleaning on bale weight and average price per pound. The study was undertaken as part of a broad marketing research program aimed at increasing marketing efficiency and expanding the market for farm products. The study was conducted in east-central Arkansas during the ginning seasons of 1957-58 and 1958-59. During these two seasons, 413 bales of cotton were sampled at 4 gins. Samples of lint were taken from each bale before any lint cleaning, after one lint cleaning, and after two lint cleanings. The classification of these samples, together with the weight of waste removed by the lint cleaners, provided the basis for evaluating the effects of these machines. The gins were similarly equipped, with fairly elaborate overhead cleaning and conditioning equipment.