

In a plant in Rothschild, Wis., lignin, precipitated from waste liquor of the sulfite 

 pulping process, is extracted by a vacuum filter (above). Mixed with soda and 

 cooked, lignin yields vanillin, source of "vanilla" flavoring, and desulfonated lignin, 

 base for plastic and molding resins. Waste sulfite liquors also contain wood sugars 

 which may be converted into ethyl alcohol and high-protein yeast and molasses for 

 livestock feed. Below: A large pulp and paper company's yard at Luke, Md., 

 where 20,000 cords of all kinds of hardwoods (except black locust and walnut) are 

 kept always on hand for making all sorts of paper, particularly fine stock for books. 



