Democratic Northwest. [volume] (Napoleon, Ohio) 1869-1894, 1885-03-05

3. How could you detect free " In
jar of n? How much nitric acid can be
formed from 80 lbs. Of sodium nitrate?
4. Give illustrations of the replace
ment of H in acids by metals, and name
the salts formed.
3. Name disinfectant, and explain
the chemical action by which it accom-
plishes its object.
6. Name the compounds of S. Give
the properties and uses of 8 o..
I. WHAT'S meant by reduction and
oxidation in the chemical relation be-
tween animals and plants? Name the
antidOtes for the strongest acids; arse
mic; carbon dioxiGe; and p.
s. Define sublimation, distillation and
nascent state. Give the properties and
uses of aqua fOrtis and the chemical
composition ofaqua regia.
8. Describe the preparation of COM
mon salt from salsoda. What is the
chemical composition of gun powder?
Gun caps? Matches?
| 10. State the formulas for nitre, saler-
atus, pearl ash, soda, and nitric anhy-
bride. Explain the difference between
anaesthetic and anticeptic properties.
Tenth Year-NaturaI Philosophy.
1. Define specific gravity. ~. What
is the bulk ofa ton of ofcopper? ~. What
is the weight of a cube of gold four feet
on each side?
q What is the weight, in water, of a
body whose specific gravity is 6.S and
weight 62.56 OF?
8. Define pneumatics. How can the
pressure of the air be ascertained?
| ho ,,f., ~ Of ntr no
measured? Over how high a ridge can
you carry water in siphOn, when the
barometer stands at % inches?
5. Explain the principle of the lifting
pump. How high can liquid with a
specific gravity of 1.24 be raised by it.
when the barometer stands at 20 inches?
6. State the various effects one mag
net may exert upon another, and gen.
eralize the facts into law. Give q
theory of magnetism.
7. State the law of electric action.
How do you know there are two kinds
of electricity? Compare electricity and
magnetism.
8. If a metal globe suspended by a silk
cord be brought near the prime conduc-
tor of an electrical machine, feeble
sparks will result if held in the hand,
stronger sparks will be produced. Ex-
plain.
8. Explain how water may be decom-
posed by galvanic battery. Explain
electrotyping.
10. Give theory ofsound. Name the
three elements of musical sound and
state the physical causes of each. AS you
go from the equator to the poles, given
pendulum will swing faster until you
reach either, when it's motion will eX-
ceed that at all other points on the
earths surface. Why, and what fact
does it demonstrate.
[Select Ten.l
Ninth Year-Physiology.
1. Define the structure and compost
tion of the bones, and their arrange
ment in the skeleton.
9. What is the difference between a
hexor and an extensor muscle? When
both contract at the same time how do
they affect the limb?
3. What kinds of food are most nutri-
cious? Describe the process of fdigestion.
Locate the salivary glands.
4. Locate the liver. What are its
special functions? What are the ingre-
dents of the blood?
S. Describe the course of the blood
through the body. Why is its coogula-
ton when exposed to the air so impor-
tant? What is meant by "tranfusion?
6. Why are some of the organs con-
trolled by the action of involuntary
muscles? Name the organs of respira-
ton. What are the bronchi? the bron-
chial tubes? the lobules?
7. What is the pulse and what does
it indicate? What is the Office of the
capillaries? What is the office Of the
pulminary artery?
s. What is the mean temperature of
the body and upon what does it depend?
Name the processes of nutrition. De-
scribe secretion.
8. Of what use is the nervous system?
| Describe the brain. What is meant by
nerve irritability? What is the office of
the intercostal and phrenic nerves?
10. Explain reflex action. What pro-
duces paralysis? Describe the eye. What
are the special senses. Locate and de-
scribe the "chain of three bones"
Ninth Year-Higher Arithmetic.
II. Name the applications of percent
age. What number diminished by
Is % per cent. of itself equals 2035.S?
2. If 1 sell As of an article for 6-7 of
its cost, what is the per cent. of loss or
gain?
3. A man bonght pair of horses for
$3.50, which was 90 per cent. less than
their true value, and sold them for 20
per cent. more than their real value,
what per cent. did he gain?
4. Define premium; discount; par
value; dividend. Dividends are declared
on what value? What determines the
rate of premium in insurance?
5. invest 5000 in stock at 25 per
cent discount, which pays dividend
of 8 per cent. annually, how much
must invest in stock at 4per cent. dis
count and paying 10 per cent. dividend
annually to secure an equal income?
6. What sum must be invested in U.
S. 6's at l12 s to secure an annual in
come of $3.50?
7. The sale of my farm cost me $500;
l gave the proceeds to broker, allow
ing him J per cent. to purchase r. r.
stock at 102 per cent; the farm paid a
S per cent income equal to $2O75, but
the stock pays S2025 more, what is the
rate of dividend?
8. Define customes; specific duty and
tare. The duty on 1900 yds of silk at
60 per cent. ad valorem was $2970. For
what per yd must the importer sell the
silk to clear 20 per cent.
8. took risk at 2 per cent; reinsur.
ed $40 900 at o. and $4,000 at Del