and sizing agents are incorporated and the whole furnish is tinted
either to produce a satisfactory white or the desired color.

The term "paper making," as used in this publication, means the
operation of forming the finished sheet of paper from stock which has
been furnished and prepared in the beater. In these tests a 30-inch
Fourdrinier machine of regular construction was used, a machine which
often is used for the production of paper for filling regular commercial
orders. The machine is designed to cause the water suspension of fibers
to flow on to a traveling wire cloth, whereby the water drains away.
More water is removed by passing the wet sheet through a series of press
rolls, after which the sheet is dried on steam-heated drums and passed
through polished iron rolls, which impart a finish to the sheet. A
Jordan refining machine was employed in conjunction with the machine to
improve further the quality of the fiber, and a pulp screen was used in
order to remove coarse and extraneous materials from the fiber.


=DESCRIPTION OF TESTS.=

The nature of each complete paper test and the dependence of each
operation on the others were such that it does not seem advisable to
submit the results of the seven tests in tabular form. The numerous
cooks, however, which furnished the pulp for the paper tests are
presented in Table I in all essential detail.


TABLE I.--Data on cooking hemp hurds.

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