The wood fiber must be mixed with other ingredients when paper is made
from it. This shows a corner of the large electro-chemical department
for the production of bleach and soda used in the preparation of rag
and wood fibres.]
[Illustration: THE WATER SUPPLY.
A good deal of water is needed in making paper. From twelve to fifteen
million gallons daily are drawn from the river and filtered through
this plant in Maine; clean paper of bright color being dependent upon
the use of pure water.]
[Illustration: BEATING THE INGREDIENTS FOR MAKING PULP