BY-PRODUCTS OF COTTON 217 



larger returns in money when fed to dairy cattle or to fattening 

 steers than when applied to the soil. 



Cottonseed Oil. Cottonseed oil is almost identical in composi- 

 tion with olive oil. Its various grades are used as salad oils and 

 cooking oils, as a lubricant, and in the manufacture of oleomargarine, 

 soaps, and paints. 



Cottonseed Hulls. Cottonseed hulls are tough, woody material 

 and are used in the manufacture of paper and fiber-board from which 

 are made trunks, gear-wheels and many other useful articles. They 

 are often used as a feed for dairy cattle, but they are poor in fats 

 and protein and are usually supplemented with .cottonseed meal. 

 Their ash, however, is rich in fertilizing constituents potash, phos- 

 phoric acid and lime and is a valuable fertilizer, although little 

 used, 



