CHAPTER XXVI.

ALCOHOL.

~1.~ As we learned in the early part of our study of this subject,

alcohol is produced by _fermentation_. It is afterwards separated from

water and other substances by _distillation_. We will now learn a few

more things about alcohol.

~2. Alcohol Burns.~--If alcohol is placed in a lamp, it will burn much

like kerosene oil. Indeed, it does not need a lamp to help it burn as

does oil. If a few drops of alcohol are placed upon a plate, it may be

lighted with a match, and will burn with a pale blue flame. Thus you see

that alcohol is a sort of burning fluid.

~3.~ The vapor of alcohol will burn also, and under some circumstances

it will explode. On this account it is better not to try any experiments

with it unless some older person is close by to direct you, so that no

harm may be done. Alcohol is really a dangerous substance even though we

do not take it as a drink.

~4. An Interesting Experiment.~--We have told you that all fermented

drinks contain alcohol. You will remember that wine, beer, ale, and

cider are fermented drinks. We know that these drinks contain alcohol

because the chemist can separate the alcohol from the water and other

substances, and thus learn just how much alcohol each contains.

~5.~ If we should remove all the alcohol from wine, no one would care to

drink it. The same is true of beer and cider. It is very easy to remove

the alcohol by the simple process of heating. This is the way the

chemist separates it. The heat drives the alcohol off with the steam. If

the heating is continued long enough, all the alcohol will be driven

off. The Chinaman boils his wine before drinking it. Perhaps this is one

reason why Chinamen are so seldom found drunken.

~6.~ By a simple experiment which your parents or your teacher can

perform for you, it can be readily proven that different fermented

drinks contain alcohol, and also that the alcohol may be driven off by

heat. Place a basin half full of water upon the stove where it will soon

boil. Put into a glass bottle enough beer or cider so that when the

bottle stands up in the basin the liquid in the bottle will be at about

the same height as the water in the basin. Now place in the neck of the

bottle a closely fitting cork in which there has been inserted a piece

of the stem of a clay pipe or a small glass tube. Place the bottle in

the basin. Watch carefully until the liquid in the bottle begins to

boil. Now apply a lighted match to the end of the pipe-stem or glass

tube. Perhaps you will observe nothing at first, but continue placing

the match to the pipe-stem, and pretty soon you will notice a little

blue flame burning at the end of the stem. It will go out often, but you

can light it again. This is proof that alcohol is escaping from the

liquid in the bottle. After the liquid has been boiling for some time,

the flame goes out, and cannot be re-lighted, because the alcohol has

been all driven off.

[Illustration: Alcohol experiment.]

~7. The Alcohol Breath.~--You have doubtless heard that a person who is

under the influence of liquor may be known by his breath. His breath

smells of alcohol. This is because his lungs are trying to remove the

alcohol from his blood as fast as possible, so as to prevent injury to

the blood corpuscles and the tissues of the body. It is the vapor of

alcohol mixed with his breath that causes the odor.

~8.~ You may have heard that sometimes men take such quantities of

liquor that the breath becomes strong with the vapor of alcohol and

takes fire when a light is brought near the mouth. These stories are

probably not true, although it sometimes happens that persons become

diseased in such a way that the breath will take fire if it comes in

contact with a light. Alcohol may be a cause of this kind of disease.

~9. Making Alcohol.~--It may be that some of our young readers would

like to find out for themselves that alcohol is really made by

fermentation. This may be done by an easy experiment. You know that

yeast will cause bread to "rise" or ferment. As we have elsewhere

learned, a little alcohol is formed in the fermentation of bread, but is

driven off by the heat of the oven in baking, so that we do not take any

of it into our stomachs when we eat the bread. If we place a little

baker's yeast in sweetened water, it will cause it to ferment and

produce alcohol. To make alcohol, all we have to do is to place a little

yeast and some sweetened water in a bottle and put it away in a warm

place for a few hours until it has had time to ferment. You will know

when fermentation has taken place by the great number of small bubbles

which appear. When the liquid has fermented, you may prove that alcohol

is present by means of the same experiment by which you found the

alcohol in cider or wine. (See page 160.)

~10.~ Alcohol is made from the sweet juices of fruits by simply allowing

them to ferment. Wine, as you know, is fermented grape juice. Cider is

fermented apple juice. The strong alcoholic liquor obtained by

distilling wine, cider, or any kind of fermented fruit juice, is known

as brandy.

~11. How Beer is Made.~--Beer is made from grain of some sort. The grain

is first moistened and kept in a warm place for a few days until it

begins to sprout. The young plant needs sugar for its food; and so while

the grain is sprouting, the starch in the grain is changed into sugar by

a curious kind of digestion. This, as you will remember, is the way in

which the saliva acts upon starch. So far no very great harm has been

done, only sprouted grain, though very sweet, is not so good to eat as

grain which has not sprouted. Nature intends the sugar to be used as

food for the little sproutlet; but the brewer wants it for another

purpose, and he stops the growth of the plant by drying the grain in a

hot room.

~12.~ The next thing the brewer does is to grind the sprouted grain and

soak it in water. The water dissolves out the sugar. Next he adds yeast

to the sweet liquor and allows it to ferment, thus converting the sugar

into alcohol. Potatoes are sometimes treated in a similar way.

~13.~ By distilling beer, a strong liquor known as whiskey is obtained.

Sometimes juniper berries are distilled with the beer. The liquor

obtained is then called gin. In the West Indies, on the great sugar

plantations, large quantities of liquor are made from the skimmings and

cleanings of the vessels in which the sweet juice of the sugar-cane is

boiled down. These refuse matters are mixed with water and fermented,

then distilled. This liquor is called rum.

~14.~ Now you have learned enough about alcohol to know that it is not

produced by plants in the same way that food is, but that it is the

result of a sort of decay. In making alcohol, good food is destroyed and

made into a substance which is not fit for food, and which produces a

great amount of sickness and destroys many lives. Do you not think it a

pity that such great quantities of good corn and other grains should be

wasted in this way when they might be employed for a useful purpose?

~15. The Alcohol Family.~--Scientists tell us that there are several

different kinds of alcohol. Naphtha is a strong-smelling liquid

sometimes used by painters to thin their paint and make it dry quickly.

It does not have the same odor as alcohol, but it looks and acts very

much like it. It will burn as alcohol does. It kills animals and plants.

It will make a person drunk if he takes a sufficient quantity of it.

Indeed, it is so like alcohol that it really is a kind of alcohol.

~16.~ There are also other kinds of alcohol. Fusel-oil, a deadly poison,

is an alcohol. A very small amount of this alcohol will make a person

very drunk. Fusel-oil is found in bad whiskey. (All whiskey is bad, but

some kinds are worse than others.) This is why such whiskey makes men so

furiously drunk. It also causes speedy death in those who use it

frequently. There are still other kinds of alcohol, some of which are

even worse than fusel-oil. So you see this is a very bad family.

~17.~ Like most other bad families, this alcohol family has many bad

relations. You have heard of carbolic acid, a powerful poison. This is

one of the relatives of the alcohol family. Creosote is another

poisonous substance closely related to alcohol. Ether and chloroform, by

which people are made insensible during surgical operations, are also

relatives of alcohol. They are, in fact, made from alcohol. These

substances, although really useful, are very poisonous and dangerous. Do

you not think it will be very wise and prudent for you to have nothing

to do with alcohol in any form, even wine, beer, or cider, since it

belongs to such a bad family and has so many bad relations?

~18.~ Some persons think that they will suffer no harm if they take only

wine or beer, or perhaps hard cider. This is a great mistake. A person

may get drunk on any of these drinks if a sufficient amount be taken.

Besides, boys who use wine, beer, or cider, rarely fail to become fond

of stronger liquors. A great many men who have died drunkards began with

cider. Cider begins to ferment within a day or two after it is made, and

becomes stronger in alcohol all the time for many months.

~19. "Bitters."~--There are other liquids not called "drinks" which

contain alcohol. "Bitters" usually contain more alcohol than is found in

ale or wine, and sometimes more than in the strongest whiskey. "Jamaica

ginger" is almost pure alcohol. Hence, it is often as harmful for a

person to use these medicines freely as to use alcoholic liquors in any

other form.

~20.~ Alcoholic liquors of all kinds are often adulterated. That is,

they contain other poisons besides alcohol. In consequence of this,

they may become even more harmful than when pure; but this does not make

it safe to use even pure liquor. Alcohol is itself more harmful than the

other drugs usually added in adulteration. It is important that you

should know this, for many people think they will not suffer much harm

from the use of alcohol if they are careful to obtain pure liquors.

~21. Some Experiments.~--How many of you remember what you have learned

in previous lessons about the poisonous effects of alcohol? Do people

ever die at once from its effects? Only a short time ago a man made a

bet that he could take five drinks of whiskey in five seconds. He

dropped dead when he had swallowed the fourth glass. No one ever

suffered such an effect from taking water or milk or any other good food

or drink.

~22.~ A man once made an experiment by mistake. He was carrying some

alcohol across a lawn. He accidentally spilled some upon the grass. The

next day he found the grass as dead and brown as though it had been

scorched by fire.

~23.~ Mr. Darwin, the great naturalist, once made a curious experiment.

He took a little plant with three healthy green leaves, and shut it up

under a glass jar where there was a tea-spoonful of alcohol. The

alcohol was in a dish by itself, so it did not touch the plant; but the

vapor of the alcohol mixed with the air in the jar so that the plant had

to breathe it. In less than half an hour he took the plant out. Its

leaves were faded and somewhat shrivelled. The next morning it appeared

to be dead. Do you suppose the odor of milk or meat, or of any good

food, would affect a plant like that? Animals shut up with alcohol die

in just the same way.

~24. A Drunken Plant.~--How many of you remember about a curious plant

that catches flies? Do you remember its name? What does the Venus's

fly-trap do with the flies after it catches them? Do you say that it

eats them? Really this is what it does, for it dissolves and absorbs

them. In other words, it digests them. This is just what our stomachs do

to the food we eat.

~25.~ A few years ago Mr. Darwin thought that he would see what effect

alcohol would have upon the digestion of a plant. So he put a

fly-catching plant in a jar with some alcohol for just five minutes. The

alcohol did not touch the plant, because the jar was only wet with the

alcohol on the inside. When he took the plant out, he found that it

could not catch flies, and that its digestion was spoiled so that it

could not even digest very tender bits of meat which were placed on its

leaves. The plant was drunk.

~26.~ Mr. Darwin tried a great many experiments with various poisons,

and found that the plants were affected in much the same way by ether

and chloroform, and also by nicotine, the poisonous oil of tobacco.

Sugar, milk, and other foods had no such effect. This does not look much

as though alcohol would help digestion; does it?

~27. Effects of Alcohol on Digestion.~--Dr. Roberts, a very eminent

English scientist, made many experiments, a few years ago, to ascertain

positively about the effect of alcohol upon digestion. He concluded that

alcohol, even in small doses, delays digestion. This is quite contrary

to the belief of very many people, who suppose that wine, cider, or

stronger liquors aid digestion. The use of alcohol in the form of beer

or other alcoholic drinks is often a cause of serious disease of the

stomach and other digestive organs.

~28. Effects of Alcohol on Animal Heat.~--A large part of the food we

eat is used in keeping our bodies warm. Most of the starch, sugar, and

fat in our food serves the body as a sort of fuel. It is by this means

that the body is kept always at about the same temperature, which is

just a little less than one hundred degrees. This is why we need more

food in very cold weather than in very warm weather.

~29.~ When a person takes alcohol, it is found that instead of being

made warmer by it, he is not so warm as before. He feels warmer, but if

his temperature be ascertained by means of a thermometer placed in his

mouth, it is found that he is really colder. The more alcohol a person

takes the colder he becomes. If alcohol were good food would we expect

this to be the case? It is probably true that the alcohol does make a

little heat, but at the same time it causes us to lose much more heat

than it makes. The outside of the body is not so warm as the inside.

This is because the warm blood in the blood-vessels of the skin is

cooled more rapidly than the blood in the interior of the body. The

effect of alcohol is to cause the blood-vessels of the outside of the

body to become much enlarged. This is why the face becomes flushed. A

larger amount of warm blood is brought from the inside of the body to

the outside, where it is cooled very rapidly; and thus the body loses

heat, instead of gaining it, under the influence of alcohol. This is not

true of any proper food substance.

~30. Alcohol in the Polar Regions.~--Experience teaches the same thing

as science respecting the effect of alcohol. Captain Ross, Dr. Kane,

Captain Parry, Captain Hall, Lieutenant Greely, and many other famous

explorers who have spent long months amid the ice and snow and intense

cold of the countries near the North Pole, all say that alcohol does not

warm a man when he is cold, and does not keep him from getting cold.

Indeed, alcohol is considered so dangerous in these cold regions that no

Arctic explorer at the present time could be induced to use it. The

Hudson Bay Company do not allow the men who work for them to use any

kind of alcoholic liquors. Alcohol is a great deceiver, is it not? It

makes a man think he is warmer, when he is really colder. Many men are

frozen to death while drunk.

~31. Alcohol in Hot Regions.~--Bruce, Livingstone, and Stanley, and all

great African travellers, condemn the use of alcohol in that hot country

as well as elsewhere. The Yuma Indians, who live in Arizona and New

Mexico, where the weather is sometimes much hotter than we ever know it

here, have made a law of their own against the use of liquor. If one of

the tribe becomes drunk, he is severely punished. This law they have

made because of the evil effects of liquor which they noticed among the

members of their tribe who used to become intoxicated. Do you not think

that a very wise thing for Indians to do?

~32. Sunstroke.~--Do you know what sunstroke is? If you do not, your

parents or teacher will tell yow that persons exposed to the heat of the

sun on a hot summer day are sometimes overcome by it. They become weak,

giddy, or insensible, and not infrequently die. Scores of people are

sometimes stricken down in a single day in some of our large cities. It

may occur to you that if alcohol cools the body, it would be a good

thing for a person to take to prevent or relieve an attack of sunstroke.

On the contrary, it is found that those who use alcoholic drinks are

much more liable to sunstroke than others. This is on account of the

poisonous effects of the alcohol upon the nerves. No doctor would think

of giving alcohol in any form to a man suffering with sunstroke.

~33. Effects of Alcohol upon the Tissues.~--Here are two interesting

experiments which your teacher or parents can make for you.

_Experiment 1._ Place a piece of tender beefsteak in a saucer and cover

it with alcohol. Put it away over night. In the morning the beefsteak

will be found to be shrunken, dried, and almost as tough as a piece of

leather. This shows the effect of alcohol upon the tissues, which are

essentially like those of lower animals.

_Experiment 2._ Break an egg into a half glassful of alcohol. Stir the

egg and alcohol together for a few minutes. Soon you will see that the

egg begins to harden and look just as though it had been boiled.

~34.~ This is the effect of strong alcohol. The alcohol of alcoholic

drinks has water and other things mixed with it, so that it does not act

so quickly nor so severely as pure alcohol; but the effect is

essentially the same in character. It is partly in this way that the

brain, nerves, muscles, and other tissues of drinking men and women

become diseased.

Eminent physicians tell us that a large share of the unfortunate persons

who are shut up in insane asylums are brought there by alcohol. Is it

not a dreadful thing that one's mind should be thus ruined by a useless

and harmful practice?

SUMMARY.

1. Alcohol is produced by fermentation, and obtained by distillation. It

will burn like kerosene oil and other burning fluids.

2. The vapor of alcohol will burn and will sometimes explode.

3. Alcohol may be separated from beer and other fermented liquids by

boiling.

4. Brandy is distilled from fermented fruit juice, whiskey and gin from

beer or fermented grains, rum from fermented molasses.

5. Alcohol is the result of a sort of decay, and much good food is

destroyed in producing it.

6. Besides ordinary alcohol, there are several other kinds. Naphtha and

fusel-oil are alcohols.

7. All the members of the alcohol family are poisons; all will burn, and

all will intoxicate. The alcohol family have several bad relations,

among which are carbolic acid, ether, and chloroform.

8. Cider, beer, and wine are harmful and dangerous as well as strong

liquors. "Bitters" often contain as much alcohol as the strongest

liquors, and sometimes more.

9. Alcoholic liquors are sometimes adulterated, but they usually contain

no poison worse than alcohol. Pure alcohol is scarcely less dangerous

than that which is adulterated.

10. Death sometimes occurs almost instantly from taking strong liquors.

11. Alcohol will kill grass and other plants, if poured upon them or

about their roots.

12. Mr. Darwin proved that the vapor of alcohol will kill plants; also

that plants become intoxicated by breathing the vapor of alcohol.

13. Alcohol, even in small quantities, hinders digestion.

14. Alcohol causes the body to lose heat so rapidly that it becomes

cooler instead of warmer.

15. The danger of freezing to death when exposed to extreme cold is

greatly increased by taking alcohol.

16. Stanley, and other African explorers, say that it is dangerous to

use alcoholic drinks in hot climates.

17. In very hot weather, persons who use alcoholic drinks are more

subject to sunstroke than those who do not.

18. Beefsteak soaked in alcohol becomes tough like leather. An egg

placed in alcohol is hardened as though it had been boiled.

19. The effect of alcohol upon the brain, nerves, and other tissues of

the body is much the same as upon the beefsteak and the egg.

QUESTIONS FOR REVIEW.

CHAPTER I. THE HOUSE WE LIVE IN.--What is the body like? Does

the body resemble anything else besides a house? How is it like a

machine? Name the different parts of the body. What is anatomy?

physiology? hygiene?

CHAPTER II. A GENERAL VIEW OF THE BODY.--What are the main

parts of the body? Name the different parts of the head; of the trunk;

of each arm; of each leg. What covers the body?

CHAPTER III. THE INSIDE OF THE BODY.--What is the name of the

framework of the body? What is the skull? How is the back-bone formed?

Name the two cavities of the trunk. What does the chest contain? the

abdomen?

CHAPTER IV. OUR FOODS.--Of what are our bodies made? What are

foods? Where do we get our foods? Name some animal foods; some vegetable

foods. What are poisons?

CHAPTER V. UNHEALTHFUL FOODS.--Is the flesh of diseased animals

good for food? What can you say about unripe, stale, or mouldy foods?

What is adulteration of foods? What foods are most likely to be

adulterated? Are pepper, mustard, and other condiments proper foods?

What about tobacco? What is the effect of tobacco upon boys?

CHAPTER VI. OUR DRINKS.--What is the only thing that will

satisfy thirst? Why do we need water? How does water sometimes become

impure? What is the effect of using impure water? What are the

properties of good water? Are tea and coffee good drinks? How is alcohol

made? Give familiar examples of fermentation. How are pure alcohol and

strong liquors made? Is alcohol a food? Why do you think it is a poison?

Do you think moderate drinking is healthful?

CHAPTER VII. HOW WE DIGEST.--What is digestion? What is the

digestive tube? Name the different digestive organs. How many sets of

teeth has a person in his lifetime? How many teeth in each set? How many

pairs of salivary glands? What do they form? What is the gullet?

Describe the stomach. What is the gastric juice? How long is the

intestinal canal? What fluid is formed in the intestines? Where is the

liver found, and how large is it? What does the liver produce? What is

the gall-bladder, and what is its use? What does the liver do besides

producing bile? What and where is the pancreas? What does the pancreas

do? Where is the spleen? How many important organs of digestion are

there? How many digestive fluids?

CHAPTER VIII. DIGESTION OF A MOUTHFUL OF BREAD.--Name the

different processes of digestion [mastication, action of saliva,

swallowing, action of stomach and gastric juice, action of bile, action

of pancreatic juice, action of intestines and intestinal juice,

absorption, liver digestion]. Describe the digestion of a mouthful of

bread. Where is the food taken after it has been absorbed? What are the

lacteals? What is the thoracic duct?

CHAPTER IX. BAD HABITS IN EATING.--What is indigestion? Mention

some of the causes of indigestion. How does eating too fast cause

indigestion? Eating too much? too frequently? Irregularly? when tired?

How do tea and coffee impair digestion? Why is it harmful to use iced

foods and drinks? Why should we not eat pepper and other hot and

irritating things? How should the teeth be cared for? How does

tobacco-using affect the stomach? What dreadful disease is sometimes

caused by tobacco? How does alcohol affect the gastric juice? the

stomach? the liver?

CHAPTER X. A DROP OF BLOOD.--What does the blood contain? How

many kinds of blood corpuscles are there? What work is done for the body

by each kind of corpuscles?

CHAPTER XI. WHY THE HEART BEATS.--Where is the heart? Why does

the heart beat? How many chambers has the heart? What are the

blood-vessels? How many kinds of blood-vessels are there? Name them.

What is the difference between venous blood and arterial blood? What

change occurs in the blood in the lungs? What is the pulse? How much

work does the heart do every twenty-four hours? What are the lymphatics?

What do they contain, and what is their purpose? What are lymphatic

glands?

CHAPTER XII. HOW TO KEEP THE HEART AND BLOOD HEALTHY.--Name

some things likely to injure the heart or the blood. What is the effect

of violent exercise? of bad air? of bad food? of loss of sleep? of

violent anger? What can you say about clothing? What is the effect of

alcohol upon the blood? the heart? the bodily heat? What is the effect

of tobacco upon the heart? the pulse? the blood? What is the effect of

tea and coffee upon the heart? What is a cold? In a case of bleeding

from a wound, how can you tell whether a vein or an artery is cut? How

would you stop the bleeding from an artery? from a vein? How would you

stop nose-bleed?

CHAPTER XIII. WHY AND HOW WE BREATHE.--What happens to a

lighted candle if shut up in a small, close place? to a mouse? Why is

air so necessary for a burning candle and for animals? How is the heat

of our bodies produced? Name the principal organs of breathing.

Describe each. How do we use the lungs in breathing? How much air will a

man's lungs hold? How much air do we use with each breath? What

poisonous substance does the air which we breathe out contain? Will a

candle burn in air which has been breathed? What happens to animals

placed in such air? What change takes place in the blood as it passes

through the lungs? How do plants purify the air?

CHAPTER XIV. HOW TO KEEP THE LUNGS HEALTHY.--What is the thing

most necessary to preserve life? Name some of the ways in which the

blood becomes impure. Why is bad-smelling air dangerous to health? What

are germs? Why are some diseases "catching"? Name some such diseases.

What should be done with a person who has a "catching" disease? What is

the effect of the breath upon the air? How much air is poisoned and made

unfit to breathe by each breath? How much air do we spoil every minute?

every hour? How much pure air does each person need every minute? every

hour? How do we get fresh air into our houses? Why are windows and doors

not good means of ventilating in cold weather? How should a room be

ventilated? How should we use the lungs in breathing? What about the

clothing in reference to the lungs? Why is it injurious to breathe

habitually through the mouth? What is the effect of alcohol upon the

lungs? What is the effect of tobacco-using upon the throat and nose?

CHAPTER XV. THE SKIN AND WHAT IT DOES.--How many layers in the

skin? What is each called? To what is the color of the skin due? What

glands are found in the true skin? What are the nails and what is their

purpose? How does the hair grow? Name the different uses of the skin?

CHAPTER XVI. HOW TO TAKE CARE OF THE SKIN.--What happened to

the little boy who was covered with gold leaf? Why did he die? What is

the effect of neglecting to keep the skin clean? What is the effect of

wearing too much clothing and living in rooms which are too warm? How

should the hair be cared for? the nails? What is the effect of alcohol,

tobacco, and other narcotics upon the skin?

CHAPTER XVII. THE KIDNEYS AND THEIR WORK.--What is the work of

the kidneys? How may we keep these organs healthy? What is the effect of

alcohol upon the kidneys?

CHAPTER XVIII. OUR BONES AND THEIR USES.--How many bones in the

body? What are the bones called when taken all together? Name the

principal parts of the skeleton. Name the bones of the trunk, of the

arms, of the legs. What are the uses of the bones? What is a joint? What

is cartilage? By what are the bones held together? Of what are the bones

largely composed?

CHAPTER XIX. HOW TO KEEP THE BONES HEALTHY.--What sort of

bread is best for the bones? Why? If a child tries to walk too early why

are its legs likely to become crooked? What are the effects of sitting

or lying in bad positions? Of wearing tight or poorly-fitting clothing?

Of tight or high-heeled shoes? What injuries are likely to happen to the

bones and joints by accident or rough play?

CHAPTER XX. THE MUSCLES AND HOW WE USE THEM.--How many muscles

in the body? Of what are the muscles composed? How are many of the

muscles connected to the bones? To what are all bodily movements due?

How do the muscles act? What causes the muscles to act? Do all muscles

act only when we will to have them act?

CHAPTER XXI. HOW TO KEEP THE MUSCLES HEALTHY.--What makes the

right arm of the blacksmith stronger than the left one? How should

exercise be taken? Mention some things in relation to the use of the

muscles which we ought not to do, and state the reasons why. What is the

effect of alcohol upon the muscles? of tobacco? of tea and coffee?

CHAPTER XXII. HOW WE FEEL AND THINK.--With what part of the

body do we think? How many brains does a man have? How is each brain

divided? Of what is the brain largely composed? Where do the nerves

begin? What is the spinal cord? Why does it cause pain to prick the

finger? How many kinds of nerves are there? (_Ans._ Two; nerves of

feeling and nerves of work.) Name some of the different kinds of nerves

of feeling? Name some of the different kinds of work controlled by the

nerves of work. Of what use to the body are the brain and nerves? How

does the brain use the nerves? Of what use is the large brain? What does

the little brain do? Of what use is the spinal cord?

CHAPTER XXIII. HOW TO KEEP THE BRAIN AND NERVES

HEALTHY.--Mention some things which we need to do to keep the brain

and nerves healthy. Mention some things which we ought not to do.

CHAPTER XXIV. BAD EFFECTS OF ALCOHOL UPON THE BRAIN AND

NERVES.--What is the effect of alcohol upon the brain and nerves?

Does alcohol produce real strength? Does it produce real warmth? Does

alcohol make people better or worse? What is the effect of tobacco upon

the brain and nerves? Does the use of tobacco lead to other evil habits?

What about the effect of opium and other narcotics?

CHAPTER XXV. HOW WE HEAR, SEE, SMELL, TASTE, AND FEEL.--How

many senses have we? What is the ear? Name the three parts of the ear.

How do we hear? How should we treat the ear?

Name the principal parts of the eye? What are found in the eyeball? How

is the eyeball moved in the socket? How is the eye moistened? Of what

use is the lens of the eye? Of what use is the pupil of the eye? How may

we preserve the eyesight?

Where are the nerves of smell located? Of what use is the sense of

smell?

Where are the nerves of taste found? How is the sense of taste sometimes

injured or lost? What do we detect with the sense of taste? Of what use

to us is the sense of taste?

With what sense do we feel objects? In what parts of the body is this

sense most delicate? Upon what do all the special senses depend? Does

anything that injures the brain and nerves also injure the special

senses? What is the effect of alcohol and tobacco upon the sense of

sight? How is the hearing affected by tobacco-using? The sense of smell?

The sense of taste?

CHAPTER XXVI. ALCOHOL.--How is alcohol produced? In what

respect is alcohol like kerosene oil? Is alcohol a dangerous thing even

if we do not drink it? How can you prove that there is alcohol in wine,

beer, cider, and other fermented drinks? Can you tell by the odor of his

breath when a person has been drinking? Why? Does the breath ever take

fire? May alcohol be a cause? From what is brandy made? How are whiskey,

gin, and rum made? Is alcohol a result of growth, like fruits and

grains, or of decay? Is there more than one kind of alcohol? Mention

some of the members of the alcohol family. In what ways are the members

of this family alike? Name some of the bad relations. Are cider and

beer, as well as whiskey, dangerous? Why? Mention some other things,

besides drinks, which contain alcohol. Are alcoholic drinks adulterated?

Is pure alcohol safe? Is instant death ever produced by alcohol? Will

alcohol kill plants? Describe Mr. Darwin's experiment which proved this.

Can plants be made drunk by alcohol? Describe the experiment which

proves this. What has Dr. Roberts proven concerning the influence of

alcohol upon digestion? How are our bodies kept warm? Explain how

alcohol makes the body cooler? Do Arctic explorers use alcohol? Why not?

Does the use of alcohol prevent sunstroke? What do Stanley and

Livingstone say about the use of alcohol in Africa? What is the effect

of using alcohol upon meat and eggs? What is the effect of alcohol upon

the brain and other tissues of the body? Does alcohol cause insanity and

other diseases of the brain and nerves?

FOOTNOTES:

[A] More properly _Carbonic dioxid_.

[B] For the sake of brevity and clearness the author has included under

the term "little brain" the _medulla oblongata_ as well as the

_cerebellum_.

THE END.

Aids to Field and Laboratory Work in Botany

_Apgars' Plant Analysis._ By E.A. and A.C. APGAR.

Cloth, small 4to, 124 pages 55 cents

A book of blank schedules, adapted to Gray's Botanies, for pupils' use

in writing and preserving brief systematic descriptions of the plants

analyzed by them in field or class work. Space is allowed for

descriptions of about one hundred and twenty-four plants with an

alphabetical index.

An analytical arrangement of botanical terms is provided, in which the

words defined are illustrated by small wood cuts, which show at a glance

the characteristics named in the definition.

By using the Plant Analysis, pupils will become familiar with the

meaning of botanical terms, and will learn how to apply these terms in

botanical descriptions.

_Apgar's Trees of the Northern United States_

Their Study, Description, and Determination. For the use of Schools and

Private Students. By AUSTIN C. APGAR.

Cloth, 12mo, 224 pages. Copiously Illustrated $1.00

This work has been prepared as an accessory to the study of Botany, and

to assist and encourage teachers in introducing into their classes

instruction in Nature Study. The trees of our forests, lawns, yards,

orchards, streets, borders and parks afford a most favorable and

fruitful field for the purposes of such study. They are real objects of

nature, easily accessible, and of such a character as to admit of being

studied at all seasons and in all localities. Besides, the subject is

one of general and increasing interest, and one that can be taught

successfully by those who have had no regular scientific training.

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STORER AND LINDSAY'S

~Elementary Manual of Chemistry~

By F.H. STORER, S.B., A.M., and W.B. LINDSAY, A.B., B.S.

Cloth, 12mo, 453 pages. Illustrated. Price, $1.20

This work is the lineal descendant of the "Manual of Inorganic

Chemistry" of Eliot and Storer, and the "Elementary Manual of Chemistry"

of Eliot, Storer and Nichols. It is in fact the last named book

thoroughly revised, rewritten and enlarged to represent the present

condition of chemical knowledge and to meet the demands of American

teachers for a class book on Chemistry, at once scientific in statement

and clear in method.

The purpose of the book is to facilitate the study and teaching of

Chemistry by the experimental and inductive method. It presents the

leading facts and theories of the science in such simple and concise

manner that they can be readily understood and applied by the student.

The book is equally valuable in the class-room and the laboratory. The

instructor will find in it the essentials of chemical science developed

in easy and appropriate sequence, its facts and generalizations

expressed accurately and scientifically as well as clearly, forcibly and

elegantly.

"It is safe to say that no text-book has exerted so wide an

influence on the study of chemistry in this country as this work,

originally written by Eliot and Storer. Its distinguished authors

were leaders in teaching Chemistry as a means of mental training in

general education, and in organizing and perfecting a system of

instructing students in large classes by the experimental method.

As revised and improved by Professor Nichols, it continued to give

the highest satisfaction in our best schools and colleges. After

the death of Professor Nichols, when it became necessary to revise

the work again, Professor Lindsay, of Dickinson College, was

selected to assist Dr. Storer in the work. The present edition has

been entirely rewritten by them, following throughout the same plan

and arrangement of the previous editions, which have been so highly

approved by a generation of scholars and teachers.

"If a book, like an individual, has a history, certainly the record

of this one, covering a period of nearly thirty years, is of the

highest and most honorable character."--_From The American Journal

of Science._

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~Chemistry~

TEXT-BOOKS AND LABORATORY METHODS

Storer and Lindsay's Elementary Manual of Chemistry

By F.H. STORER, A.M., S.B., and W.B. LINDSAY, Ph.D.

Cloth, 12mo, 453 pages $1.20

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Clarke's Elements of Chemistry

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A scientific book for high schools and colleges.

Cooley's New Elementary Chemistry for Beginners

By LEROY C. COOLEY, Ph.D. Cloth, 12mo, 300 pages 72 cents

A book of experimental chemistry for beginners.

Steele's Popular Chemistry

By J. DORMAN STEELE, Ph.D. Cloth, 12mo, 343 pages $1.00

A popular treatise for schools and private students.

Youmans's Class-Book of Chemistry

By E.L. YOUMANS, M.D. Revised by W.J. Youmans, M.D.

Cloth, 12mo, 404 pages $1.22

For schools, colleges, and general reading.

Brewster's First Book of Chemistry

By MARY SHAW-BREWSTER. Boards, 12mo, 144 pages 66 cents

An elementary class-book for beginners in the study.

Armstrong and Norton's Laboratory Manual of Chemistry

By JAMES E. ARMSTRONG and JAMES H. NORTON.

Cloth, 12mo, 144 pages 50 cents

A brief course of experiments in chemistry,

covering about forty weeks' work in the laboratory.

Cooley's Laboratory Studies in Chemistry

By LEROY C. COOLEY, Ph.D. Cloth, 8vo, 144 pages 50 cents

A carefully selected series of 151 experiments,

designed to teach the fundamental facts and

principles of chemistry for secondary schools.

Keiser's Laboratory Work in Chemistry

By EDWARD H. KEISER, Ph.D. Cloth, 12mo, 119 pages 50 cents

A series of experiments in general inorganic chemistry,

intended to illustrate and supplement the work of the

class-room.

Qualitative Chemical Analysis of Inorganic Substances

As practiced in Georgetown College, D.C.

Cloth, 4to, 61 pages $1.50

Designed to serve as both text-book and laboratory

manual in Qualitative Analysis.

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~Physics~

Cooley's Student's Manual of Physics

For the Study Room and Laboratory. By L.C. COOLEY,

Ph.D., Professor of Mathematics in Vassar College.

Cloth, 12mo, 448 pages. Illustrated $1.00

A new text-book in Physics for high schools, academies, and colleges. It

embodies a full and thorough treatment of the laws of physics, the best

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taken to select experiments which will not overtax the capacities of

beginners nor require expensive apparatus, but which at the same time

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Harrington's Physics for Grammar Schools

BY C.L. HARRINGTON, M.A. Cloth, 12mo, 123 pages. 50 cents

A practical text-book based on the natural or experimental method,

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thorough preparation for advanced study.

Appletons' School Physics

Cloth, 12mo, 552 pages $1.20

A thoroughly modern text-book on Natural Philosophy, which

reflects the most advanced pedagogical methods and the latest laboratory

practice.

Steele's Popular Physics

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A popular text-book, in which the principles of the science are

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of every pupil.

Trowbridge's New Physics

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A thoroughly modern work, intended as a class manual of Physics

for colleges and advanced preparatory schools.

Hammel's Observation Blanks in Physics

By WILLIAM C.A. HAMMEL.

Flexible, quarto, 42 pages. Illustrated 30 cents

A pupil's laboratory manual and notebook for the first term's work.

Blanks are left in which the pupil writes his observations and the

principles illustrated.

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Laboratory Physics

Hammel's Observation Blanks in Physics

By WILLIAM C.A. HAMMEL, Professor of Physics in Maryland State

School, Boards, Quarto, 42 pages. Illustrated 30 cents

These Observation Blanks are designed for use as a Pupil's Laboratory

Manual and Note Book for the first term's work in the study of Physics.

They combine in convenient form descriptions and illustrations of the

apparatus required for making experiments in Physics, with special

reference to the elements of Air, Liquids, and Heat; directions for

making the required apparatus from simple inexpensive materials, and for

performing the experiments, etc. The book is supplied with blanks for

making drawings of the apparatus and for the pupil to record what he has

observed and inferred concerning the experiment and the principle

illustrated.

The experiments are carefully selected in the light of experience and

arranged in logical order. The treatment throughout is in accordance

with the best laboratory practice of the day.

Hon. W.T. Harris, U.S. Commissioner of Education, says of these Blanks:

"I have seen several attempts to assist the work of pupils engaged in

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be of such practical assistance as Hammel's Observation Blanks."

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Burnet's Zoölogy

FOR

HIGH SCHOOLS AND ACADEMIES

BY

MARGARETTA BURNET

Teacher of Zoölogy, Woodward High School, Cincinnati, O.

Cloth, 12mo, 216 pages. Illustrated. Price, 75 cents

This new text-book on Zoölogy is intended for classes in High Schools,

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prepared by a practical teacher, and is the direct result of school-room

experience, field observation and laboratory practice.

The design of the book is to give a good general knowledge of the

subject of Zoölogy, to cultivate an interest in nature study, and to

encourage the pupil to observe and to compare for himself and then to

arrange and classify his knowledge. Only typical or principal forms are

described, and in their description only such technical terms are used

as are necessary, and these are carefully defined.

Each subject is fully illustrated, the illustrations being selected and

arranged to aid the pupil in understanding the structure of each form.

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Zoölogy and Natural History

Burnet's School Zoölogy

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A new text-book for high schools and academies, by a practical teacher;

sufficiently elementary for beginners and full enough for the usual

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Needham's Elementary Lessons in Zoölogy

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Cooper's Animal Life

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An attractive book for young people. Admirably adapted for supplementary

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Holders' Elementary Zoölogy

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Cloth, 12mo, 401 pages $1.20

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grade.

Hooker's Natural History

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Designed either for the use of schools or for the general reader.

Morse's First Book in Zoölogy

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For the first study of animal life. The examples presented are such as

are common and familiar.

Nicholson's Text-Book of Zoölogy

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Revised edition. Adapted for advanced grades of high schools or

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Steele's Popular Zoölogy

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Cloth, 12mo, 369 pages $1.20

For academies, preparatory schools and general reading. This popular

work is marked by the same clearness of method and simplicity of

statement that characterize all Prof. Steele's text-books in the Natural

Sciences.

Tenneys' Natural History of Animals

By SANBORN TENNEY and ABBEY A. TENNEY.

Revised Edition. Cloth, 12mo, 281 pages $1.20

This new edition has been entirely reset and thoroughly revised, the

recent changes in classification introduced, and the book in all

respects brought up to date.

Treat's Home Studies in Nature

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Text-Books in Geology

Dana's Geological Story Briefly Told

By JAMES D. DANA. Cloth, 12mo, 302 pages $1.15

A new edition of this popular work for beginners in the study and for

the general reader. The book has been entirely rewritten, and improved

by the addition of many new illustrations and interesting descriptions

of the latest phases and discoveries of the science. In contents and

dress it is an attractive volume either for the reader or student.

Dana's Revised Text-Book of Geology

Edited by WILLIAM NORTH RICE, Ph.D., LL.D., Professor of

Geology, Wesleyan University. Cloth, 12mo, 482 pages. $1.40

This is the standard text-book for high school and elementary college

work. The book has been thoroughly revised, enlarged, and improved,

while the general and distinctive features of the former work have been

preserved. As now published, it combines the results of the life

experience and observation of its distinguished author with the latest

discoveries and researches in the science.

Dana's Manual of Geology

By JAMES D. DANA.

Cloth, 8vo, 1087 pages. 1575 illustrations $5.00

This great work was thoroughly revised and entirely rewritten under the

direct supervision of its author, just before his death. It is

recognized as a standard authority, and is used as a manual of

instruction in all higher institutions of learning.

Le Conte's Compend of Geology

By JOSEPH LE CONTE, LL.D. Cloth, 12mo, 399 pages $1.20

Designed for high schools, academies, and all secondary schools.

Steele's Fourteen Weeks in Geology

By J. DORMAN STEELE, Ph.D. Cloth, 12mo, 280 pages $1.00

A popular book for elementary classes and the general reader.

Andrews's Elementary Geology

By E.B. ANDREWS, LL.D. Cloth, 12mo, 283 pages $1.00

Adapted for elementary classes. Contains a special treatment of the

geology of the Mississippi Valley.

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A New Astronomy

BY

DAVID P. TODD, M.A., Ph.D.

Professor of Astronomy and Director of the Observatory, Amherst College.

Cloth, 12mo, 480 pages. Illustrated Price, $1.30

This book is designed for classes pursuing the study in High Schools,

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Astronomy is the practical way in which the subjects treated are

enforced by laboratory experiments and methods. In this the author

follows the principle that Astronomy is preëminently a science of

observation and should be so taught.

By placing more importance on the physical than on the mathematical

facts of Astronomy the author has made every page of the book deeply

interesting to the student and the general reader. The treatment of the

planets and other heavenly bodies and of the law of universal

gravitation is unusually full, clear, and illuminative. The marvelous

discoveries of Astronomy in recent years, and the latest advances in

methods of teaching the science, are all represented.

The illustrations are an important feature of the book. Many of them are

so ingeniously devised that they explain at a glance what pages of mere

description could not make clear.

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A Laboratory Manual in Practical Botany

For use in Secondary Schools and for Elementary Work in Colleges

By CHARLES H. CLARK, A.M., D.Sc.,

Principal of Windsor Hall School, Waban, Mass.

Cloth, 12mo, 272 pages. Illustrated 96 cents

The course of botanical study outlined in this book is intended to give

the student a general view of the subject, and at the same time to lay a

foundation upon which more advanced studies may be built. The book is

primarily a laboratory manual and follows the method recommended by the

Committee of Ten and employed by the best teachers. So pursued, the

study of botany provides the means of developing habits of close and

accurate observation and of cultivating the reasoning powers that can

scarcely be claimed for any other subject taught in the schools.

It provides a systematic outline of classification to serve as a guide

in laboratory work and in the practical study of the life histories of

plants, their modes of reproduction, manner of life, etc. The treatment

is suggestive and general to adapt it to the courses of study in

different schools, and to allow the teacher to follow his own ideas in

selecting the work of his class.

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Important New Books

Crockett's Plane and Spherical Trigonometry

By C.W. CROCKETT, C.E., Professor of Mathematics and Astronomy

in Rensselaer Polytechnic Institute, Troy, New York. With Tables. Cloth,

8vo. 310 pages $1.25

The Same. Without Tables 1.00

Logarithmic and Trigonometric Tables (separate) 1.00

A clear analytic treatment of the elements of Plane and Spherical

Trigonometry and their practical applications to Surveying, Geodesy, and

Astronomy, with convenient and accurate "five place" tables for the use

of the student, engineer, and surveyor. Designed for High Schools,

Colleges, and Technical Institutions.

Raymond's Plane Surveying

By W.G. RAYMOND, C.E., Member American Society of Civil

Engineers, Professor of Geodesy, Road Engineering, and Topographical

Drawing in Rensselaer Polytechnic Institute.

Cloth, 8vo. 485 pages. With Tables and Illustrations $3.00

A modern text-book for the study and practice of Land, Topographical,

Hydrographical, and Mine Surveying. Special attention is given to such

practical subjects as system in office work, to labor-saving devices, to

coördinate methods, and to the explanation of difficulties encountered

by young surveyors. The appendix contains a large number of original

problems, and a full set of tables for class and field work.

Todd's New Astronomy

By DAVID P. TODD, M.A., Ph.D., Professor of Astronomy and

Director of the Observatory, Amherst College.

Cloth, 12mo. 500 pages. Illustrated $1.30

A new Astronomy designed for classes pursuing the study in High Schools,

Academies, and other Preparatory Schools. The treatment throughout is

simple, clear, scientific, and deeply interesting. The illustrations

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numerous reproductions from astronomical photographs.

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Birds of the United States

A Manual for the Identification of Species East of the Rocky Mountains

By AUSTIN C. APGAR

Author of "Trees of the Northern United States," etc.

Cloth, 12mo, 415 pages, with numerous

illustrations. Price, $2.00

The object of this book is to encourage the study of Birds by making it

a pleasant and easy task. The treatment, while thoroughly scientific and

accurate, is interesting and popular in form and attractive to the

reader or student. It covers the following divisions and subjects:

PART I. A general description of Birds and an explanation of

the technical terms used by ornithologists.

PART II. Classification and description of each species with

Key.

PART III. The study of Birds in the field, with Key for their

identification.

PART IV. Preparation of Bird specimens.

The descriptions of the several species have been prepared with great

care and present several advantages over those in other books. They are

short and so expressed that they may be recalled readily while looking

at the bird. They are thus especially adapted for field use. The

illustrations were drawn especially for this work. Their number,

scientific accuracy, and careful execution add much to the value and

interest of the book. The general Key to Land and Water Birds and a very

full index make the book convenient and serviceable both for the study

and for field work.

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First Book in Physiology and Hygiene · 第 26 / 26 章