COMPARATIVE SPIXXIXG TESTS. 
19 
portionately less wasty than the three bales of Sakellaridis from 
Alexandria, Egypt. 
There was no relation in the price of the different kinds of cotton to 
the percentages of waste discarded in the manufacturing processes. 
The reverse condition developed, namely, Arizona-Egyptian cotton 
was estimated to be lower in commercial value than Sea Island, and 
Sea Island to be lower than Sakellaridis, when comparing equivalent 
grades. 
There was no significant relationship between the tensile strength 
of the respective grades of Arizona-Egyptian cotton. 
The difference in the tensile strength of yarn made from the three 
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Fig. 2. — Comparison of the prices of raw cotton, waste discarded in the manufacturing processes, and the 
tensile strength of the yarn in pounds per skein of 120 yards each for Arizona-Egyptian, Sea Island, and 
Sakellaridis Egyptian cottons. 
(The figures at the left indicate the cents per pound for the price, percentage for the waste, and pounds 
per skein for the breaking strength.) 
kinds of cotton was practically negligible. Considerable deviation 
occurred varying slightly in favor of first one kind and then another, 
but, as a whole, resulting somewhat in favor of the Sakellaridis 
Egyptian cotton, with the Sea Island coming second. However, the 
tensile strength for the highest numbers of yarn was in favor of the 
Sea Island cotton. 
Figure 2 presents graphically the comparative prices of the three 
kinds of cotton, the percentages of waste of each kind discarded in 
the manufacturing processes, and the tensile strengths of the yarn 
made from them. The graph is arranged for comparing the grades 
that are practically equivalent. The table at the bottom of this 
graph gives the figures referred to which are taken from previous 
