4 
range in specific gravity and strength values than was true of the data 
imoleile heretofore, made it See: that these assumptions were 
inaccurate and that there was a better and more correct method 
expressing the actual relations between specific gravity and strength, 
160 
HEIGHT OF DROP= INCHES. 
10.0 
JOO LBS. PER SQ. IN. 
FIBER STRESS ATE.L.™ 
. BULLETIN 676, U. S. DEPARTMENT OF AGRICULTURE. 
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