LINT PERCENTAGE AND LINT INDEX OE COTTON. 
9 
direct reading of the lint percentage. The beam is graduated to a 
maximum of 100 grams. A second graduation is placed on the lower 
edge of the beam at the right. Reading in the reverse direction, or 
to the left, this graduation shows the difference between 100 grams 
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Fig. 1. — Torsion-balance beam, graduated for the direct reading of the lint per- 
centage of cotton. 
and the weight indicated, as the rider is moved from the 100-gram 
mark toward zero. (Fig. 1.) By the use of this balance the per- 
centage of lint, which in this case is the difference between the net 
weight of the seed and the original weight of the specimen of seed 
cotton, mav be read at a glance without the trouble of subtraction. 
Fig. 2. — A balance for the direct reading of the lint percentage of cotton. 
Thus, if the seeds of a 100-gram sample of seed cotton are found 
after ginning to weigh 65 grams, the weight of the lint removed is 
35 grams, which is 35 per cent of the original weight of the seed 
cotton, or the lint percentage. (Fig. 2.) 
