Pullman herald. [volume] (Pullman, W.T. [Wash.]) 1888-1989, 1908-11-06
Portland Cement

What is the composition OF Port
land cement. and how is it made?
Is there any difference between Port
land cement, and hydraulic cement?
All cements are spoken of as n.y.
drauic cements, because they will
'set" in water, and are prerared in
paste by lime morton. Portland ce-
ment is produced by crushing rock
containing the proper ingredients,
PRINCIPALLY of clay and lime nature, to
an impalpable powder. This powder
is burned at q temperature of more
than 1000 degrees Fahrenheit, produc
ing "cement cinker. 4" The cement
clinker is cooled and re-ground to an
impalpable powder, with the addition
of about two per cent plaster of Paris
ground equally fine to control its
setting" qualities, after which the
cement becomes the finished product.
What to do with "Fire-Burn."
have a northern slope of fire
burn, that was burnt ten years ago.
Now the land is covered with a sort
of green moss, and pine and tamarack
brush. The ground is rich mellow
loan, but seems sour. and it does not
raise anything. What is the best re
NEEDY for such land?
The fact that your land is covered
with moss would indicate that it is
kept wet with a seepage. If this is
true the sourness may best be rene
died with thorough under drainage
If the sourness is not due to seepage
water. or excess of soil water from
other sources. there are two things
that will help to overcome the diff
Guilty; one is the application of lime
which tends to counterfeit the acidity;
the other is blowing and thorough
cultivation, which allows the air to
circulate freely, which will greatly
overcome the acidity By certain chem
cal changes.
Clay and Upland Soils.
"Will you suggest good fertilizer
for clay soils, sandy soils, and upland
soils? Suggest some good pasture
grasses?
Lime is valuable fertilizer for
clay soils anywhere in Western Wash
ington. For sandy soils, lime is need
ed. A good heavy dose of barn-yard
manure is better than lime on all up
land soils, and at the present price is
a much less expensive fertilizer. If
you want permanent pasture. a mix
ture of orchard grass, and Italian rye
grass will ordinarily make better
pasture; but much larger amount of
food per acre can be obtained by SOW
ing spring vetch in the spring. This
will only last one year and will have
to be reseeded in the following
spring. Most of the annual grasses
do not make very heavy growth up
on the upland in your neighborhood.
Alcohol from Potatoes.
| am interested in the production of
alcohol and starch from potatoes.
About what is the percentage of
starch and alcohol obtained from
tubers?
Potatoes first have to be fermented
In order to obtain the alcohol from the
starch. Then distilation is necessary
to get the alcohol. The percentage of
alcohol obtained would be about one
half the percentage of starch present in
the potatoes. The average percentage
of starch in this state is about II per
cent; hence you could figure on about
8l-2 of the weight of the potatoes be-
ing returned as alcohol. A bushe of
potatoes will yield about IL pounds
of alcohol. Ninety per cent alcohol
Is the strength that is best adapted to
industrial uses A whiskey still
would do all right for the distiling of
industrial alcohol
Milk the Heavier.
Which is heavier, a gallon of fresh
milk. or gallon of distilled water.
Ahiih az q temperature OF 4 degrees
centigrade, weighes from l.O29 to
l.O34 times the weight of a gallon of
pure water The increased weight of
the milk is due to the milk solids
which make up about twelve per cent
of the total volume of milk. Some
kinds of oils are heavier and others
lighter than milk.
Blood is all Right.
have a COW that gives bloody
milk. She is fine three-year old, and
her first calf was born last June I
find no traces of blood when milking
nor can l detect it until the milk has
stood for twenty four hours. AT the
end of that time there will be cloudv
sediment in the bottom of the nan
Can you tell me what the trouble isq
From VptIF 1osorsrt;z