Show wood for newsprint since the customary units ot of wood measurement cord too log measure or lumber scale do not represent an exact quantity the cubic foot solid wood la Is used even this unit Is variable as to pulp yield according to the character of the wood as to species and rate of growth however taking the dry weight of spruce as 21 24 pounds per cubic toot foot the commercial yield of cubic feet would be about 2300 pounds of mechanical pulp and of sulphite pulp 1030 pounds commercially newsprint Is made from a mixture of 75 per cent mechanical and 2 ai it per cent sulphite consequently a on of newsprint would contain 1500 pounds mechanical and pounds pound 3 sulphite then 1500 pounds mechanical would require cubic feet wood pounds sulphite would require cubic feet wood one ton newsprint would require 1137 cubic feet or pounds oven dry spruce wood |