The Ontario Readers: Fourth Book Part 26

Who, if he rise to station of command, Rises by open means; and there will stand On honourable terms, or else retire, And in himself possess his own desire; Who comprehends his trust, and to the same Keeps faithful with a singleness of aim; And therefore does not stoop, nor lie in wait For wealth, or honours, or for worldly state: Whom they must follow; on whose head must fall, Like showers of manna, if they come at all.

Wordsworth: "The Happy Warrior."

THE SOLITARY REAPER

Behold her, single in the field, Yon solitary Highland La.s.s!

Reaping and singing by herself; Stop here, or gently pa.s.s!

Alone she cuts and binds the grain, And sings a melancholy strain; O listen! for the Vale profound Is overflowing with the sound.

No Nightingale did ever chaunt More welcome notes to weary bands Of travellers in some shady haunt Among Arabian sands: A voice so thrilling ne'er was heard In spring-time from the Cuckoo-bird, Breaking the silence of the seas Among the farthest Hebrides.

Will no one tell me what she sings?-- Perhaps the plaintive numbers flow For old, unhappy, far-off things, And battles long ago: Or is it some more humble lay, Familiar matter of to-day?

Some natural sorrow, loss, or pain, That has been, and may be again?

Whate'er the theme, the Maiden sang As if her song could have no ending; I saw her singing at her work, And o'er the sickle bending;-- I listened, motionless and still; And, as I mounted up the hill, The music in my heart I bore Long after it was heard no more.

Wordsworth

CLOUDS, RAINS, AND RIVERS

Every occurrence in Nature is preceded by other occurrences which are its causes, and succeeded by others which are its effects. The human mind is not satisfied with observing and studying any natural occurrence alone, but takes pleasure in connecting every natural fact with what has gone before it, and with what is to come after it. Thus, when we enter upon the study of rivers, our interest will be greatly increased by taking into account, not only their actual appearances but also their causes and effects.

Let us trace a river to its source. Beginning where it empties itself into the sea, and following it backwards, we find it from time to time joined by tributaries which swell its waters. The river, of course, becomes smaller as these tributaries are pa.s.sed. It shrinks first to a brook, then to a stream; this again divides itself into a number of smaller streamlets, ending in mere threads of water. These const.i.tute the source of the river, and are usually found among hills. Thus, the Severn has its source in the Welsh Mountains; the Thames in the Cotswold Hills; the Rhine and the Rhone in the Alps; the Missouri in the Rocky Mountains; and the Amazon in the Andes of Peru.

But it is quite plain, that we have not yet reached the real beginning of the rivers. Whence do the earliest streams derive their water? A brief residence among the mountains would prove to you that they are fed by rains. In dry weather you would find the streams feeble, sometimes indeed quite dried up. In wet weather you would see them foaming torrents. In general these streams lose themselves as little threads of water upon the hillsides; but sometimes you may trace a river to a definite spring. You may, however, very soon a.s.sure yourself that such springs are also fed by rain, which has percolated through the rocks or soil, and which, through some orifice that it has found or formed, comes to the light of day.

But we cannot end here. Whence comes the rain which forms the mountain streams? Observation enables you to answer the question. Rain does not come from a clear sky. It comes from clouds. But what are clouds? Is there nothing you are acquainted with, which they resemble? You discover at once a likeness between them and the condensed steam of a locomotive.

At every puff of the engine, a cloud is projected into the air. Watch the cloud sharply: you notice that it first forms at a little distance from the top of the funnel. Give close attention, and you will sometimes see a perfectly clear s.p.a.ce between the funnel and the cloud. Through that clear s.p.a.ce the thing which makes the cloud must pa.s.s. What, then, is this thing which at one moment is transparent and invisible, and at the next moment visible as a dense opaque cloud?

It is the _steam_ or _vapour of water_ from the boiler. Within the boiler this steam is transparent and invisible; but to keep it in this invisible state a heat would be required as great as that within the boiler. When the vapour mingles with the cold air above the hot funnel, it ceases to be vapour. Every bit of steam shrinks, when chilled, to a much more minute particle of water. The liquid particles thus produced form a kind of _water-dust_ of exceeding fineness, which floats in the air, and is called a _cloud_.

Watch the cloud-banner from the funnel of a running locomotive; you see it growing gradually less dense. It finally melts away altogether; and if you continue your observations, you will not fail to notice that the speed of its disappearance depends upon the character of the day. In humid weather the cloud hangs long and lazily in the air; in dry weather it is rapidly licked up. What has become of it? It has been reconverted into true invisible vapour.

The _drier_ the air, and the _hotter_ the air, the greater is the amount of cloud which can be thus dissolved in it. When the cloud first forms, its quant.i.ty is far greater than the air is able to maintain in an invisible state. But, as the cloud mixes gradually with a larger ma.s.s of air, it is more and more dissolved, and finally pa.s.ses altogether from the condition of a finely-divided liquid into that of transparent vapour or gas.

Make the lid of a kettle air-tight, and permit the steam to issue from the spout; a cloud is formed in all respects similar to that issuing from the funnel of the locomotive. To produce the cloud, in the case of the locomotive and the kettle, _heat_ is necessary. By heating the water we first convert it into steam, and then by chilling the steam we convert it into cloud. Is there any fire in Nature which produces the clouds of our atmosphere? There is: the fire of the sun.

When the sunbeams fall upon the earth, they heat it, and also the water which lies on its surface, whether it be in large bodies, such as seas or rivers, or in the form of moisture. The water being thus warmed, a part of it is given off in the form of aqueous vapour, just as invisible vapour pa.s.ses off from a boiler when the water in it is heated by fire.

This vapour mingles with the air in contact with the earth. The vapour-charged air, being heated by the warm earth, expands, becomes lighter, and rises. It expands also, as it rises, because the pressure of the air above it becomes less and less with the height it attains.

But an expanding body always becomes colder as the result of its expansion. Thus the vapour-laden air is chilled by its expansion. It is also chilled by coming in contact with the colder, higher air. The consequence is that the invisible vapour which it contains is chilled, and forms into tiny water-drops, like the steam from a kettle or the funnel of the locomotive. And so, as the air rises and becomes colder, the vapour gathers into visible ma.s.ses, which we call clouds.

This ascending moist air might become chilled, too, by meeting with a current of cold, dry air, and then clouds would be formed; and should this chilling process continue in either case until the water-drops become heavier than the surrounding air, they would fall to the earth as raindrops. Rain is, therefore, but a further stage in the condensation of aqueous vapour caused by the chilling of the air.

Mountains also a.s.sist in the formation of clouds. When a wind laden with moisture strikes against a mountain, it is tilted and flows up its side.

The air expands as it rises, the vapour is chilled and becomes visible in the form of clouds, and if sufficiently chilled, it comes down to the earth in the form of rain, hail, or snow.

Thus, by tracing a river backwards, from its end to its real beginning, we come at length to the sun; for it is the sun that produces aqueous vapour, from which, as we have seen, clouds are formed, and it is from clouds that water falls to the earth to become the sources of rivers.

There are, however, rivers which have sources somewhat different from those just mentioned. They do not begin by driblets on a hillside, nor can they be traced to a spring. Go, for example, to the mouth of the river Rhone, and trace it backwards. You come at length to the Lake of Geneva, from which the river rushes, and which you might be disposed to regard as the source of the Rhone. But go to the head of the lake, and you find that the Rhone there enters it; that the lake is, in fact, an expansion of the river. Follow this upwards; you find it joined by smaller rivers from the mountains right and left. Pa.s.s these, and push your journey higher still. You come at length to a huge ma.s.s of ice--the end of a glacier--which fills the Rhone valley, and from the bottom of the glacier the river rushes. In the glacier of the Rhone you thus find the source of the river Rhone.

But whence come the glaciers? Wherever lofty mountains, like the Alps, rise into the high parts of the atmosphere where the temperature is below the freezing-point, the vapour condensed from the air falls upon them, not as rain, but as snow. In such high mountainous regions, the heat of the summer melts the snow from the lower hills, but the higher parts remain covered, for the heat cannot melt all the snow which falls there in a year. When a considerable depth of snow has acc.u.mulated, the pressure upon the lower layers squeezes them into a firm ma.s.s, and after a time the snow begins to slide down the slope of the mountain. It pa.s.ses downward from one slope to another, joined continually by other sliding ma.s.ses from neighbouring slopes, until they all unite into one long tongue, which creeps slowly down some valley to a point where it melts. This tongue from the snow-fields is called a glacier.

Without solar fire, therefore, we could have no atmospheric vapour, without vapour no clouds, without clouds no snow, and without snow no glaciers. Curious then as the conclusion may be, the cold ice of the Alps has its origin in this heat of the sun.

Tyndall: "The Forms of Water."

(Adapted)

For what are men better than sheep or goats That nourish a blind life within the brain, If, knowing G.o.d, they lift not hands of prayer Both for themselves and those who call them friend?

Tennyson

FITZ-JAMES AND RODERICK DHU

The Chief in silence strode before, And reached that torrent's sounding sh.o.r.e, Which, daughter of three mighty lakes, From Vennachar in silver breaks, Sweeps through the plain, and ceaseless mines On Bochastle the mouldering lines, Where Rome, the Empress of the world, Of yore her eagle wings unfurled.

And here his course the Chieftain staid, Threw down his target and his plaid, And to the Lowland warrior said-- "Bold Saxon! to his promise just, Vich Alpine has discharged his trust.

This murderous Chief, this ruthless man, This head of a rebellious clan, Hath led thee safe, through watch and ward, Far past Clan-Alpine's outmost guard.

Now, man to man, and steel to steel, A Chieftain's vengeance thou shalt feel.

See here, all vantageless I stand, Armed, like thyself, with single brand: For this is Coilantogle ford, And thou must keep thee with thy sword."

The Saxon paused:--"I ne'er delayed, When foeman bade me draw my blade; Nay, more, brave Chief, I vowed thy death: Yet sure thy fair and generous faith, And my deep debt for life preserved, A better meed have well deserved: Can nought but blood our feud atone?

Are there no means?"--"No, Stranger, none; And hear,--to fire thy flagging zeal,-- The Saxon cause rests on thy steel; For thus spoke Fate, by prophet bred Between the living and the dead: 'Who spills the foremost foeman's life, His party conquers in the strife.'"-- "Then, by my word," the Saxon said, "The riddle is already read.

Seek yonder brake beneath the cliff,-- There lies Red Murdoch, stark and stiff.

Thus Fate has solved her prophecy, Then yield to Fate, and not to me.

To James, at Stirling, let us go, When, if thou wilt be still his foe, Or if the King shall not agree To grant thee grace and favour free, I plight mine honour, oath, and word, That, to thy native strengths restored, With each advantage shalt thou stand, That aids thee now to guard thy land."

Dark lightning flashed from Roderick's eye-- "Soars thy presumption, then, so high, Because a wretched kern ye slew, Homage to name to Roderick Dhu?

He yields not, he, to man nor Fate!

Thou add'st but fuel to my hate:-- My clansman's blood demands revenge.

Not yet prepared?--By heaven, I change My thought, and hold thy valour light As that of some vain carpet knight, Who ill deserved my courteous care, And whose best boast is but to wear A braid of his fair lady's hair."-- "I thank thee, Roderick, for the word!

It nerves my heart, it steels my sword; For I have sworn this braid to stain In the best blood that warms thy vein.

Now, truce, farewell! and, ruth, begone!-- Yet think not that by thee alone, Proud Chief! can courtesy be shown; Though not from copse, or heath, or cairn, Start at my whistle clansmen stern, Of this small horn one feeble blast Would fearful odds against thee cast.

But fear not--doubt not--which thou wilt-- We try this quarrel hilt to hilt."-- Then each at once his falchion drew, Each on the ground his scabbard threw, Each looked to sun, and stream, and plain, As what they ne'er might see again; Then foot, and point, and eye opposed, In dubious strife they darkly closed.

Ill fared it then with Roderick Dhu, That on the field his targe he threw, Whose brazen studs and tough bull-hide Had death so often dashed aside; For, trained abroad his arms to wield, Fitz-James's blade was sword and s.h.i.+eld.