Show newspaper paper stock there are four com commercial mercial processes of making paper pulp from wood they are known as the the sulphite the sulphate and the soda processes each Is especially adopted adapted to the manufacture of certain grades of paper or to the pulping of certain woods news cheap magazine and cheap catalogue papers are made mostly of that Is of uncooked wood mechanically ground into a pulp pull the process Is the cheapest of all the pulping processes and the pulp yield Is by far the greatest the quality of the pulp however Is so low that even in cheap papers it la Is not strong enough to use alone and considerable quantities lot longer and stronger pulp must abst be added |