TYPES AND MARKET CLASSES OF LIVE STOCK 213 



as well as casings for little sausages, are made exclusively from 

 the intestines of sheep. A class of oleo oil is made from the 

 better grade of mutton tallow, and enters into the composition 

 of oleomargarine. Inedible greases are used in soaps. Some 

 valuable chemicals used in medicine are obtained as by-products 

 from sheep. Among these are thyroidin, used as a cure for 

 cretinism, and suprarenalin, a powerful astringent used in cases 

 of severe bleeding. More than 130,000 sheep are required to 

 make a pound of suprarenalin. 



