TESTS OF OFFICIAL COTTON STANDARDS FOR GRADE. 95 
textile school, in the South, with a portion of the same bales of 
cotton. At each place, the different grades were tested under as 
nearly identical conditions as was eee 
Fic. 9.—The visible waste percentages as found in mill and textile school tests. ~* 
The results of the spinning tests are summarized graphically in 
figures 9, 10, and 11. Figure 9 represents the average visible waste 
Fig. 10.—The combined visible and invisible waste percentages, as found in the mill and textile school 
tests. 
discarded in the manufacturing processes in both the textile school 
and mill tests for each of the five grades tested, while figure 10 
represents the total waste percentages. The differences in the storage 
