cost of production is increased, because the decayed chips When it is remembered that the pulp yield on Northern occupy the same space in the digester and use, therefore, the woods is directly proportional to the weight per cubic foot, same amount of chemical as the sound wood, and in some it becomes clear that the purchase of wood weighing 28 or 24 cases more. Decayed wood also requires the same ex-lbs. per cubic foot makes a decided difference in the weight of penditure in grinding. actual m7ood cooked per day.