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EVERY noble and beautiful life will be found to have in it the power of a brave courage. So seductive are the temptations to an inglorious ease on the one hand, and so bitter the jealousies of a begrudging envy on the other, that every path of earnest life-pursuit of duty will be found a difficult one. In such a course fear will faint and lose, courage will fight on and win-will battle heroically against the native love of ease in the heart, and overcome the envies and jealousies of its fellows in the world. He who is craven enough to fear criticism, or to dread detraction, need not expect to reach the goal of his ambition, for there is nothing worth having which a faint heart ever won, or ever will win.

Courage is essential to all the noble and virtuous ambitions of life, because in the pursuit of these mankind often have to deny themselves temporary pleasures and material profits. Nothing tests character, or tries endurance, more than a persistent course of conduct which pays allegiance to truth and honour, at the expense, perchance, of pleasure and repose.

In thus treating of courage, it will at once be seen that moral courage is our theme. This, however, in no sense need be glorified, as it often is in moral theses, at the expense of physical courage; for this, too, is an enviable blessing, and may be weakened or strengthened by our own neglect or endeavour. It must not be depreciated, because courage in the moral nature is of a higher and nobler kind. Moral courage is connected with human life in every sphere of temptation. Sometimes the bristling guns of inimical forces, such as contempt, aversion, and derision, make us afraid; but the balls, though they may hurt, cannot destroy the brave, and they will in time reach their end amid the rewards of honour. But the time-serving and the timorous will turn back, and will in the end be despised by those who at first opposed and ridiculed them. They altogether lose both the honour of the race and the reward of the prize. Moral courage is not alone the prerogative and appanage of some leading and time-honoured men, it may be the possession of the humblest. A beautiful statue is just as beautiful in a coal-cellar as in a drawing-room; and a bravely heroic life is just as glorious in itself, whether it be in a mechanic's workroom, or in some field of wider fame. Moral courage consists in serving the right, and never succumbing to mere might. It consists in unflinching resistance to the temptations of the popular and the profitable, the easy or the expedient, if principle is to be sacrificed, or the shrine of truth to be desecrated.

It will be seen at once that moral courage does not require the sacrifice of pleasant things when they can be fairly won and innocently enjoyed. Evil does not reside in material possessions themselves, or in human honours, but in the sacrifice of truth, which sometimes accompanies the attainment of them. In the

truest sense, we often see moral courage connected with material enrichment and outward honour.

Moreover, let it be remembered that it requires far more moral courage rightly to use the gifts bestowed upon us, than to ignore them altogether. It is easier to deny ourselves all indulgences, and by stoical process of endurance to learn to do without them, than to regulate our life aright whilst we move amid its blessings, and moderately enjoy its outward good.

Moral courage is, for the most part, no sudden attainment. To some natures it is doubtless far easier of practice than others. Where, for instance, there are strong passions and a weak will, it is manifest that the power of strong desire being co-existent with weak power of resistance, the battle of right and duty will be very severe and trying indeed. But in all cases an energetic sense of moral courage is the reward of persevering endeavour. Just as in the military campaign, courage grows by frequent encounters with the foe, and the standing firm amid the belching fires of iron hail. Thus the veteran is steady, where the young recruit is almost unnerved. The continuous conflict with those temptations which beset the higher nature, not only brings experience, but nerves the heart and renders victory easier in times to come. Moral courage may, indeed, become the habit of our life, and like all habits, good or bad, become a second nature. There can be but little doubt that there is a secret respect for moral courage in the heart of men, even where they differ with regard to the necessity for the course pursued by those who are perhaps defying public opinion and incurring odium and danger. The majority may not believe the course pursued to be either wise or necessary, but they admire the virtue which the circumstances develop, and they honour the man even when they disagree with his actions or opinions. On the other hand, a want of moral courage in the pursuit of the most commonly confessed good exposes the discovered coward to contumely and disrespect.

Moral courage should, therefore, be practised with steadfastness, and any discovery of our own weakness should be punished as men punish refractory horses, by making them pass again the objects which at first they shied. The feeling that we had not moral courage enough to deny our own dominant desires, orto face our opponents' ridicule, will, even when not made public, rankle in our own hearts, and we shall even, when we do not lose the respect of others, cease to respect ourselves. Cowardice is always contemptible, never, however, so much as when it is not the result of a sudden temptation, when indeed we have become habitués in non-resistance to what seems expedient and pleasant. Want of moral courage lies at the base of sensuality, self-indulgence, and many other forms of degradation. Had these incipient desires been crushed by a brave hand, had the fibres never been permitted by permissive indulgence to thicken into the cord which holds and binds, but been snapped at once, then the higher nature would have triumphed over the lower. The heroes of moral courage are not far to find, neither are they few, and we should both brace the nerves of our own character, and also in turn inspire imitation, as well as admiration, in others, if we contemplated the career and character of those noble men and women who fill the roll of departed heroes and heroines. The world wants brave men in every department of duty, and all success worth the endeavour to attain, and likely to produce permanent satisfaction when it is attained, must be sought and won under the inspiration of a lofty moral courage.

LESSONS IN DRAWING.-XIX.

THE HUMAN FIGURE.

We now enter upon the study of the human figure, a subject of quite a different character to any which have gone before-one that requires the closest attention, and all the energies of the draughtsman to accomplish. No one must entertain a slight idea of the necessary amount of perseverance it demands. We have frequently heard it remarked that "he who can draw the figure well, can draw anything else besides." This may be trac to a certain extent, but it does not follow, as a necessary conse quence, that they who are capable of drawing the form of man are always equally successful with landscape. The above assertion in the abstract may be considered true with this addition"he who can draw the figure well may very soon Te draw anything else besides," for in connection drawing-and figure drawing is purely free-h

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to

d

other subject in the whole range of art that so thoroughly depends upon the judgment, the eye, and the power of the hand. There are very few practical rules which can afford us any help, except the general rules of proportion, and some knowledge of anatomy, which is indispensable; beyond these there is very little besides the all-important principle of arranging the work: therefore, before we give the rules relating to the proportions of the human figure, or say anything upon its anatomical construction, we must again repeat some of our former observations respecting the necessity of arrangement. Our pupils will remember how earnestly in the early lessons we advised them first to decide where the lines are to be drawn, and not to attempt the finished drawing until the positions of the lines are satisfactorily determined: the success or failure of their efforts will depend upon how far they follow or neglect this fundamental course of proceeding. We trust this once more repeated appeal to their practical sense and judgment will suffice, being ourselves assured that if they are really in earnest in their desires and endeavours to draw the human figure well, they will show their appreciation of this advice by following it out to the letter; for both master and pupil must now remember they have entered upon a noble, and at the same time a difficult subject.

It

We have just observed that it is indispensably necessary to be acquainted with the various proportions of the human body, and to have some knowledge of anatomy. To these points we wish for a few moments to direct the attention of our pupils, and to place before them some powerful reasons why this course is so necessary. must be borne in mind that the human figure in its action is almost independent of any fixed laws; it is seen in every possible position, and under every form of expression; it is seen at rest, and in violent action; it is seen in its strength and in its weakness; it is seen in old age and childhood, in delicate womanly beauty and manly vigour. Then in addition to this there is the face, the index to the mind, subject to every variety of change resulting from inward emotions of joy or sorrow, revealing the best and the worst feelings of the heart-passion, despair, love, hatred, malice, revenge --and though last, not least, the various gradations of mental power, from the highest intellectuality to imbecility and madness. Surely here is a field for study which in its extent and grandeur has no rival. Now we wish our pupils thoroughly to understand that we are in earnest in what we are about to lay before them, and they must be in earnest also in their application. We are desirous to impart

sufficient information for all they may require. Our object is only to open out a path for them to pursue, to point out other sources of information, and direct them in the way of applying the knowledge thus gained: therefore any of our pupils who do not care to

enter into the subject to the extent we propose may stop when they think fit; but as to those who desire to make their knowledge really useful for all practical purposes-and there are many engaged in the mechanical arts who will find it a great acquisition to be able to draw the figure well-we will en deavour not to disappoint them. When we consider how much this branch of art is required in decorating, stonemasonry, modelling, wood-engraving, and many other occupations, including all kinds of designing, we feel it incumbent on us not to allow so useful an addition to their education to be passed over lightly, and oblige them to lay our lessons aside, disappointed in not finding the instruction they require.

We will first give the relative proportions of the whole form, as represented in Fig. 119. The skeleton may be properly considered the framework upon which the whole body is built, and by which it is strengthened and supported; the proportion and height, the efficiency and freedom of the whole structure, depend principally upon the right formation of the skele ton; this hard and solid framework may be considered the timbers and beams of the superstructure, and the muscles which cover it are the ropes and pulleys for moving it; thus the framework is for strength, the muscles for action, and these determine the visible and varying outline of the body.

Taking the head as a standardthat is, from the crown to the chinthe whole length of the figure of a man may be considered as measuring seven and a-half or eight heads; of a child, the proportion will be according to its age; one of seven or eight years old may be allowed five and a-half heads; and an infant, nearly four. When the arms and hands are fully extended horizontally from the body, and if the distance between the tips of the fingers from the right hand across to the left be measured, it will be found equal in length to the whole body, so that a well-proportioned man can stand in a square frame and be able to touch the sides of the square respectively with his head, his feet, and the extremities of his fingers. The distance from the top of the shoulder-that is, from the head of the humerus, a (the upper bone of the arm)-to the elbow, is the same as from the elbow b to the first knuckle of the hand, c; the same distance occurs horizontally between the outer parts of the shoulders from a to d; from the top of the sternum (breastbone), e, to the navel f, the same; from the lower part of the breast-bone, g, to the pubis h (the bone across the lower part of the body), the same; thence to the top of the patella i (or small bone on the knee, generally called the knee-cap), the same; and from the lower part of the patella k to the instep m, the same. The knowledge of these uniform lengths, so repeatedly occurring, is a very material help in drawing the figure, preventing many doubts

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more than a superficial knowhuman form; we wish to go far as we can, into the the same time it is not our intention to write a omy in our drawing lessons; instead of this, we our pupils to study carefully the lessons upon this bjects which are to be found elsewhere in the POPULAR EDUCATOR. In these they will find quite

and difficulties. In the same way that the skeleton establishes
the proportion and construction of the body, so in like manner
does the skull, by its peculiarities of character and diversity of
form, assist us to define and classify peoples, nations, and
tribes, and also to decide upon
their different intellectual capa-
bilities. All must have noticed
how very different the size of
the human cranium or brain-
case is, when compared with the
face, to that of the brute crea-
tion; and also that the head
itself, comparatively speaking,
undergoes very little change
from growth: likewise that the
brain almost reaches maturity
at a very early period, and conse-
quently the head of the infant
is considerably larger in pro-
portion to its body than when
it has arrived at manhood; the
cause of this is to be attributed
to the brain only, in which there
is less development, in propor-
tion, than there is in the growth
of the body. The face increases,
but not to the same extent as
the limbs and other parts. We
remark in the infant head the
smallness of the bones of the
nose, the shallow jaw, and the
elongated form of the head,
having the brain-case large and
projecting considerably behind.
The roundness of the child's
face is to be attributed to

Fig. 120.

the incompleteness of the lower part, which, as the teeth grow, expands from a greater extension of the jaw; when in old age the teeth have fallen out, and the face has contracted again, it resembles in many respects that of the child, excepting for the falling in of the

lips and the wrinkling of the skin. Thus as

the child grows the face becomes elongated, and the proportionate difference between the length of the face and the depth from the forehead to the back of the head is less striking. The characteristic difference in the human head between the Grecian standard, as usually seen in ancient sculpture, and that of the negro,exists in the facial line. (See Fig.120.) Draw a line from the lower part of the ear to the closing of the teeth in front, and from thence draw another to touch the outer projection of the forehead; this last line is called the facial line, and the two together form the facial angle-the angle at a. The more acute this angle is, the nearer it approaches that of the lower animals; the most desirable angle, as characteristic of the | higher powers of intellect, judgment, capability, and we include beauty also, is that of about 70°. The Grecian sculptors, in representing their gods, reached 90°, the right angle, and in

a

Fig. 121.

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angle formed by these two lines decreases, so we approach the negro, and when it is farther diminished we descend to the projecting jaws and smaller brain of the brute creation. (See Fig. 121, the facial angle of the cow.) These remarks are merely hints for the pupil, showing him the course he is to pursue in studying the human head. To go into a classification of the skulls of various tribes and nations, and point out the remarkable differences between them, is not our immediate object; to show there are these varieties, and to establish a standard as a base of construction, is all that is necessary: we leave our pupils to discover these differences for themselves, and resume our more legitimate subject-the method of drawing them. Now before we say anything about the proportions of the head and face, we wish to make a few observations upon the kind of drawing which belongs to the human figure more than any other subject, and which will become more evident as we proceed. In drawing the human form, the term outline must be used in a far wider sense than that in which it is generally considered when it relates to inanimate objects or ornaments.

a

Within the boundary line of any portion of the human form, be it face or limb, there is as great an amount of character and form to be expressed as in the outward or marginal line itself, and we cannot consider any one to be proficient who has not the power fully to represent it. The foreshortenings and projections of the body, and the unequal surfaces upon every part, arising from muscular action, as they press forward towards the eye, require an amount of anatomical knowledge which any one who attempted to draw them, without possessing, would soon discover to be indispensable. To confine our practice to the mere outline of the human figure, would give but a small idea of what is meant by drawing it; children

do no more than this. To represent an advancing limb, or uneven surface when placed directly before us, is quite an affair to that of representing the surface or limb who turned a quarter round, and is seen in profile. To acqu

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pretend to sleep, he sleeps really (réellement). 5. Will you take a walk this morning ? 6. I would do so with pleasure, if I had time. 7. Have you become acquainted with the physician? 8. I have not yet become acquainted with him. 9. How many questions have you asked (a) the child? 10. I asked him many questions. 11. Have you asked him if he had studied his lesson ? 12. I did not ask him. 13. Will not that little girl do her best to learn her lesson? 14. She will do her best to learn it. 15. Of what food do you make use when you are ill? 16. We make use of bread and rice. 17. Have you forgotten to bid farewell to your mother? 18. I had not forgotten it; I intended to go to her house this afternoon. 19. With whom have you become acquainted? 20. With the bookseller. 21. Do you not keep those ladies waiting? 22. I do not keep them waiting, they are not ready (prêtes). 23. Do I make you wait? 24. You do not make me wait. 25. done so (le). 27. Have you sent them out? Have you left your children in your room? sent them out, I have let them remain where Have you made purchases this morning? 30. I have made none, I have no money. 31. Has the servant made a fire in my room? 32. He has made one. 33. Will you do your best to come to-morrow? 34. I will do my best to come early. 35. We travelled yesterday forty leagues in sixteen hours. SECTION LXIV.-IDIOMS: FAIRE USED REFLECTIVELY AND UNIPERSONALLY.

26. I have not 28. I have not

they were. 29.

1. Faire is also used in the sense of playing the part of, or pretending to be.

Il fait le grand seigneur,

2. Faire also means to matter, Cela ne fait rien,

Cela ne vous fait rien,
Qu'est-ce que cela nous fait ?
Je ne puis qu'y faire,

You travelled twenty miles in ten self.

hours.

We shall take a walk.

I asked him several questions.
They have bid us farewell.
You kept us waiting.

That child pretends to be asleep.
You pretend to be reading, or do as
if you were reading.

We will do our best to see him.

VOCABULARY. Se fach-er, 1, ref., to be

come angry.

Faire l'aumône, to give
alms.
Laiss-er, 1, to leave, let.
Mendiant, m., beggar.
EXERCISE 121.

mer

Négociant, m.,
chant.
Quart, m., quarter.
Rarement, seldom.
Réuss-ir, 2, to succeed.
Riz, m., rice.

1. Seriez-vous bien aise de faire connaissance avec ce monsicur? 2. J'en serais bien aise. 3. Ce cheval fait-il une licue en un quart d'heure? 4. Il a fait ce matin une lieue en douze minutes. 5. Leur avez-vous fait des questions? 6. Je leur en ai fait [Sect. XLI. 11; § 135 (7)]. 7. Quelles questions leur 8. Je leur ai demandé s'ils avaient fait des avez-vous faites ? emplettes. 9. Vos élèves font-ils des progrès dans leurs études? 10. Ils n'en font pas beaucoup, ils viennent rarement à l'école. 11. Si vous étiez chez vous, feriez-vous semblant de dormir? 12. Je ne ferais certainement pas semblant de dormir. 13. Pourquoi ne faites-vous pas entrer ce mendiant? 14. Ma mère vient de lui faire l'aumône. 15. Le négociant fait-il usage de son crédit ? 16. Il en fait usage. 17. De quels aliments ce malade fait-il usage? 18. Il fait usage de riz et de bouillon. 19. Faites-vous votre possible pour réussir? 20. Je fais tout mon possible. 21. Avez-vous fait entrer ces enfants, ou les avez-vous fait sortir? 22. Je les ai laissés où ils étaient. 23. Vous avons-nous fait attendre ? 24. Vous nous avez fait attendre plusieurs heures. 25. Si vous faisiez attendre ces dames, elles se fâcheraient.

EXERCISE 122.

Does that child pretend to read? 2. He pretends to read. not that gentleman pretend to sleep? 4. He does not

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3. Se faire mal conjugated reflectively, means to hurt one's Se faire is used reflectively in the sense of the English verbs to become, to turn. It is also used with the significa tion of the words cause, have, get, etc. Se faire takes étre as its auxiliary [Sect. XLIV., § 46].

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ne fait-il

14. I have not much more. 15. Has your aunt more dresses than
16. She has not many.
your niece?
17. Is your nephew more
learned than your niece? 18. He is not so learned as she. 19. She is
more learned than he. 20. Are you still cold? 21. I am no longer
cold, I am very warm. 22. Have you no more news? 23. I have no
more. 24. Have you many? 25. I have but few.

ils du crédit?

EXERCISE 28 (Vol. I., page 116).

pas le savant? 4. Il ne fait pas le savant, il fait le fou. 5. Sied-il à ce jeune homme de faire le maître ici? 6. 7. Cela fait-il Il ne sied à personne de faire l'impertinent. quelque chose [R. 2 above]? 8. Cela ne fait absolument rien. 9. Cela peut-il faire quelque chose à ces vignerons ? 10. Cela ne leur fait rien du tout. 11. N'êtes-vous pas bien chagrinés de cela ? 12. Nous en sommes bien fâchés, mais nous ne pouvons qu'y faire. 13. Votre associé ne s'est-il pas fait bijoutier ? 1. Votre frère a-t-il un très-bon dictionnaire ? 2. Son dictionnaire 14. Non, Monsieur, il s'est fait peintre. 15. Cet artisan ne n'est pas très-correct. 3. Votre père a-t-il plus de courage que lui? 5. Vos frères onts'est il pas fait vitrier? 16. Il s'est fait tanneur, et son frère. Il a beaucoup plus de courage que votre neveu. 17. La modiste no s'est-elle pas fait couper 7. Votre tante est-elle obligeante ? s'est fait soldat. 6. Ils n'ont guère de crédit, mais ils ont de l'argent. 8. Ma tante est bien obligeante. les cheveux ? 18. Elle se les ai fait couper. 19. Ne vous 9. Avez-vous encore des livres, des plumes et du papier? 10. Je n'ai levez-vous pas aussitôt qu'il fait jour ? 20. Oui, Monsieur, je plus de livres, mais j'ai encore de bonnes plumes et d'excellent papier me lève de très-bonne heure. 21. Ne fait-il pas clair de lune? anglais. 11. Qui a encore du papier? 12. Je n'en ai plus, mais mon 22. Il fait très-clair, mais il ne fait pas clair de lune. 23. frère en a encore. 13. Avez-vous des nouvelles, Monsieur? 14. Non, Fait-il bon vivre en Amérique ? 24. Il fait très-bon vivre en Madame, je n'en ai pas aujourd'hui. 15. Avez-vous autant de bois Amérique, les denrées y sont à bon marché. que le fils de mon frère? 16. J'en ai plus que vous ou que lui. 17. Avez-vous encore tort ? 18. Non, Monsieur, je n'ai plus tort, j'ai raison. 19. Vos sœurs ont-elles encore faim? 20. Elles n'ont ni aussi savante que lui. 22. Elle est plus savante que lui et que sa faim ni soif, mais elles ont encore sommeil. 21. Votre nièce est-elle tante. 23. N'avez-vous pas de nouvelles, Monsieur? 24. Non, Madame, je n'ai plus de nouvelles. 25. Qui a des nouvelles? 26. Je n'en ai plus. 27. Les avez-vous toutes ? 28. Oui, Monsieur, je les ai toutes. 29. Votre tante en a-t-elle encore beaucoup ? 30. Elle n'en a plus guère. 31. Votre frère a-t-il encore des chevaux anglais ? 32. Il n'en a plus. 33. Il en a encore deux. 34. Avez-vous encore un beau châle français? 35. Je n'ai plus de châles français, mais j'en ai encore un anglais.

EXERCISE 124.

1. Does not that gentleman play the learned man? 2. He plays the lord and fool at the same time (à la fois). 3. Does not that boy pretend to be ill? 4. He pretends to be ill, he does not wish to study his lessons. 5. When you have no wish to work do you pretend to be ill? 6. I never pretend to be ill. 7. Is it muddy to-day? 8. It is not muddy, it is dusty. 9. Will it be moonlight this evening? 10. It will not be moonlight, it will be very dark. 11. Is it comfortable here? 12. It is very comfortable. 13. Is it too warm or too cold? 14. It is neither too warm nor too cold here. 15. Will you have your hair cut? 16. I had my hair cut yesterday morning. 17. Will you not go home, it is beginning to grow late? 18. Is it not very dark out (dehors)? 19. It is not dark, it is moonlight. 20. Has not the glazier turned goldsmith? 21. He has not turned goldsmith, he has turned soldier. 22. Does that concern your brother? 23. That does not concern him. 24. Are you not sorry for that? 25. I am sorry for it, but I cannot help it. 26. Why do you get shaved? 27. Because I cannot shave myself. 28. Have you not hurt those children? 29. I have not hurt them. 30. Have you hurt your arm? 31. No, Sir, but I have hurt my head. 32. Has not your sister hurt her hand? 33. She has hurt her hand, and my mother has hurt her elbow. 34. Have you not hurt your head? 35. I have not hurt my head, but I have hurt my hand.

KEY TO EXERCISES IN LESSONS IN FRENCH.
EXERCISE 26 (Vol. I., page 107).

1. Etes-vous plus attentif que votre sour? 2. Je ne suis pas aussi
attentif que votre frère. 3. Avez-vous plus de courage que mon frère?
4. J'en ai tout autant. 5. Le maréchal a-t-il autant d'argent que de
fer? 6. Il a plus de celui-ci que de celui-là. 7. A-t-il plus de modestie
que l'Espagnol. 8. Il en a davantage. 9. Il en a plus que la sœur de
votre ami. 10. N'avez-vous pas froid, Monsieur? 11. Non, Monsieur,
mais j'ai peur et sommeil. 12. Le Hollandais a-t-il plus de fromage
que l'Italien? 13. Il a plus de fromage et plus d'argent. 14. Avez-
You autant de soie anglaise que de soie italienne? 15. J'ai plus de
celle-ci que de celle-là. 16. Qui a plus d'amis que l'Espagnol? 17.
Votre ami en a plus.
18. L'Espagnol a-t-il autant de votre argent que
da sien? 19. Il a moins du mien que du sien. 20. Avons-nous plus
de manteaux de soie que de manteaux de drap? 21. Nous avons plus
de ceux-ci que de ceux-là. 22. Avez-vous de bous manteaux ? 23.
Oui, Monsieur, j'ai de bons manteaux, de bons chapeaux, et de bons
Bouliers de cuir.
24. Avez-vous plus d'assiettes que de plats? 25. Je
n'ai pas plus d'assiettes que de plats, mais j'ai plus de verres que
d'assiettes. 26. N'avez-vous pas très-froid? 27. Non, Monsieur, je
n'ai ni froid ni chaud. 28. Votre charpentier a-t-il du bois ? 29. Oui,
Monsieur, il a du bois, de l'argent, du fromage et de la viande.
Qui a plus d'argent que le charpentier? 31. Le Hollandais en a davan-
fare. 32. Qui a plus d'estampes que de livres ? 33. Le libraire a plus
de ceux-ci que de celles-là. 31. Êtes-vous aussi attentif que votre
ami? 35. Je suis plus attentif que mon ami.

EXERCISE 27 (Vol. I., page 115).

30.

1. Is your dictionary very correct? 2. It is more correct than Boyer's. 3. Your dictionary is the most correct of all. 4. Which is the best of those gardens? 5. This is the best of all the gardens of the city. 6. Have you any more money? 7. I have no more money, but I have still some credit. 8. Have we more salad ? 9. We have

no more.

10. We have no more meat. 11. Who has more? 12. My brothers and sisters have some more. 13. Have you much more?

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As we have already seen, hydrogen, when it burns in air, enters into combination with the oxygen, forming water. The most direct way of proving this is by means of the Eudiometer, an instrument by which the composition of water is determined by synthesis.

A strong glass tube (Fig. 27) is hermetically sealed at one end, and through the glass two platinum wires are thrust when in its melted condition; these wires are opposite each other, and almost meet.

The tube is filled with mercury, and inverted into a bath of the same metal. A mixture of the gases, in the proportion of two volumes of hydrogen to one of oxygen, is passed into the tube, until the greater part of the mercury is displaced. The tube is now held firmly down with its mouth on a piece of sheet india-rubber; for if this were not done, when the gases explode the mercury would be driven out of the tube, and the experiment rendered fruitless. A Leyden jar is charged with electricity, a chain attached to one of the platinum wires is held against the outside of the jar, whilst with the knob the other wire is touched. The jar is thus discharged, a spark passing between the wires in the tube and exploding the gas. Upon releasing the pressure of the tube against the india-rubber, the mercury from the bath rushes into the tube, completely filling it, leaving only a small globule of water in the place of the tube full of gas.

The composition of water by analysis is easily determined by means of electricity. It is a well-known property of the galvanic current that whenever it passes through water, the water is decomposed. The hydrogen passes with the current, and appears in bubbles at the negative wire, whilst the oxygen comes off from the positive wire. Fig. 28 indicates the arrangement for the experiment.

The two test tubes and the vessel are filled with water, to which is added one-eighth of sulphuric acid, to make the water a conductor of electricity. The test tubes are now inverted' over the two leaves of platinum, h, n, which are connected with the screws A and B. To A is attached a wire from the platinum end of a Grove's battery, to в the wire from the zine end. The electric current in the battery is generally said to pass from tho zine to the platinum; it leaves the battery by the wire attached to the platinum, passes from the screw A through the the current enters the instrument by the wire attached to A, water to B, and back to the zinc end of the battery. is said to be the positive wire, the other being the negative. The gases as they rise from the plate are received tubes, and it will be found that the hydrogen is nearly twi

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