The Bottineau courant. (Bottineau, Bottineau County, N.D.) 1895-1929, 1922-11-23

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SCHOOL NOTES
The students elected All athletic
board last Friday consisting of Eulah
Eastgate, President; Maurice Weeks,
Vice President; Margaret Wilson, Sec
retary- Treasurer; ard Wilfred Condie,
Yell Leader. The responsibility for the
successful management Of the basket
ball season will rest to "a large extent
upon this board. They are entitled to
the cordial support Of students, facul-
ty and the community. ". .ss5::>s s,SS .. !.
The assembly period last Thursday
was made interesting by a piano solo
by Miss Halbersleben and several
talks on the immigration problem by
students. III 4#,s.s 4#tl,. #9s1 Nh MI : Y I%Es
Monday morning this week Miss
Halbersleben entertained the students
with the following piano program:
Two Polish Themes, arranged by
Franz; Nocturne, by Krzyzanowski;
Adagio by Haydn; Fantasia, I by Mo-
zart; To the Evening Star by Wagner
List. # ..s5 55z5...s. z7& - r. r.
On Mondays program last week ap-
peared Miss Olive Berg with an in-
teresting and practical talk on simple
chemical tests for textiles. A sum
mary follows: -.
= Textile Tests ~ -
IN The most commonly used textiles
are the two vegetable fibers, cotton
and linen, and the two animal fibers,
wool and silk, The animal fibers can
be distinguished from the vegetable
by noting the way in which they burn.
Cotton and linen burn rapidly with a
bright yellow flame, leaving a small
filmy residue. Since these fibers are
cellulose, they burn much like paper.
The linen, however, burns less rapidly
than the cotton. Wool and silk burn
more slowly ard will not continue to
burn, but after a short time the flame
will go out. The residue is large COM
pared with that of cotton and it forms
into curls or balls. Often the wool
threads are cotton and the warp
threads, wool. To find out if this is
the case, ravel out threads Of each
kind and burn them separately. Some
times in plaid and checked materials,
the dark threads are wool and the
light ones cotton. This can be detected
by burning threads of each color sep
arately.- -
Cotton and linen cannot be distin-
guished from each other by burning.
The linen, however, will become trans
parent when a drop of glycerine is
placed on it, while the cotton remains
unchanged for a time and then gradu-
ally absorbs the glyeeriI,e. +
Not only are the more expensive fl
bers adulterated with cotton, but 9TH
er substances are added to give them
greater weight, luster, and stiffness.
These substances are called weighing,
sizing or dressing. Ih cotton and linen
the sizing usually is nothing more
than starch or dextrin. The sizing is
put into cloth so that it will become
soiled less easily, so that it will be
stiff and shiny, and so that it, will
appear more closely woven and finer
than it really is. Some sizing can be
removed by rubbing the cloth between
the hands. If the sizing has been done
before the weaving, rubbing will not
remove it, but boiling will. Materials
that owe their stiffness and luster to
sizing will be lacking in these quail
ties after being worn or washed.
4. Silk is weighted with mineral salts
to make it actually weigh more and to
make the dying process, especially for
blacks and dark colors, easier. The
weighing stretches the fibers until
they are weakened and if the salts.
crystalize, they will cut the fabric.
In silks that have had little or no
wear, small holes sometimes appear.
This is especially true of taffeta-
These holes are due to an excess of
weighing which has weakened or cut,
the fiber. Weighing can be detected
by burning a sample of the material.
The mineral matter will not burn,
while the silk will. If the cloth is all
silk the residue will be in the form Of
small balls. If there is weighing
present, there will be a large residue
and it will retain the shape and weight
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