20 BULLETTISr 359, IJ. S. DEPARTMENT OF AGEICULTURE. 



tables and placed here for ready reference. The figures on the left- 

 hand margin indicate cents per pound for the price, percentage for 

 the waste, and pounds per skein for the breaking strength. Number 

 80's yarn was taken for the comparison. The graph shows that 

 there is no significant relationship between the prices of the different 

 cottons and the percentages of waste and tensile strength. It shows 

 that our domestic cottons are ecjual to, and in most respects superior 

 to, imported cottons. It indicates also the preferences of manufac- 

 turers which must be changed in order to introduce satisfactorily any 

 new cotton. 



The laboratory test indicated that after bleaching, dyeing, and 

 mercerizing, the Arizona-Egyptian and Sea Island cottons were 

 practically equal to each other and were shghtly superior to the 

 Sakellaridis in their bleaching and mercerizing properties; that they 

 were fully equal to each other in dyeing properties; and in tensile 

 strength the advantage was shghtly in favor of the Sea Island and 

 Sakellaridis. The finished grey and mercerized yarns were com- 

 paratively equal in luster; however, the yeUow color was a httle more 

 evident in the Arizona-Egyptian than in the Sakellaridis, which in 

 turn was somewhat more yeUow than the Sea Island. The difference 

 in color was more apparent between the Arizona and the Sakellaridis 

 than between the Sea Island and Sakellaridis. 



