LINT PERCENTAGE AND LINT INDEX OF COTTON. 



9 



lirect reading of the lint percentage. The beam is graduated to a 

 naximum of 100 grams. A second graduation is placed on the lower 

 ■dge of the beam at the right. Reading in the reverse direction, or 

 ,o 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. 



md the weight indicated, as the rider is moved from the 100-gram 

 nark toward zero. (Fig. 1.) By the use of this balance the per- 

 'entage 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, may 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.) 



