GINNING PIMA COTTON IN ARIZONA 11 
the cotton produced by the methods employed in the different gin- 
ning establishments. 
An appreciation by gin operators of the need of using the same 
methods and precautions in the construction, adjustment, and opera- 
tion of roller gins and in the handling of the cotton from the gin to 
the finished bale would make possible a much greater uniformity in 
the appearance of the baled cotton and of the commercial samples. 
As a result of investigations conducted in Arizona by the Depart- 
ment of Agriculture an attachment was devised for removing the 
lint from the gin roller in a manner that straightens the fibers and 
improves the appearance of the cotton, so that higher commercial 
grades are obtained. This may be considered as a practical demon- 
stration that it is possible to produce bales of Pima cotton of uni- 
form appearance and thus remove the objections of the manufac- 
turers of fine goods. This device has been patented and dedicated 
to the free use of the Government and the people of the United 
States. 
