 that fills the buckets of the wheel; it is the water-fall
that is the real worker." No; it is the sun, which is a force behind the
water-fall, as the water-fall is the force behind the wheel. What
supplies the water-fall with its never-failing stream? The rain that
fills the springs high up among the hills, where a little brook has its
source--the rain that feeds the brook as it flows, and other brooks that
join it on its way, until it becomes the river that descends in the
water-fall. And what is the source of the rain? The sun, whose rays turn
the waters of the earth to vapor, and lift them up to the clouds, whence
they fall upon the hills. Were it not for the sun the rain would soon
cease to fall, the springs in the hills would dry up, the brooks would
run out, the river would dwindle away, the roar of the water-fall would
die into silence, and the wheel would stop for want of power.

The wind, which is the motive force of windmills and of sailing vessels,
is another form of sun-power. The atmosphere has been compared to a
great wheel carried round by the heat of the sun. We know that when air
is heated it rises, and that the tropical parts of the earth are hotter
than the polar regions. In the tropics, therefore, the heated air rises,
and the colder air from the poles flows in to fill its place, while the
place of the latter is filled by an upper current flowing back from the
equator; and this goes on continually, and keeps the great atmospheric
wheel turning. Wherever a wind blows, the process is similar: it is the
sun that causes the wind, be it zephyr, or gale, or hurricane.

"But," you will say, "the sun does not run our steam-engines; it is
artificial heat, not natural heat, that changes the water into steam."
Very true; but how do we get this heat? By burning wood or coal. For the
former we are clearly in debt to the sun, which made the trees grow that
furnish the fuel; and the coal is the remains of plants that grew long
before the creation of man, plants that were as dependent on
that fills the buckets of the wheel; it is the water - capitulation 
 that is the veridical worker. " No; it is the sun, which is a force behind the 
 water system - fall, as the water - twilight is the effect behind the wheel. What 
 supply the water - fall with its never - fail stream? The rain that 
 fills the springs high up among the hills, where a little brook has its 
 beginning -- the rain that feeds the brook as it flows, and other brook that 
 join it on its way, until it become the river that descends in the 
 body of water - fall. And what is the source of the rain? The sun, whose rays turn 
 the water of the earth to vapor, and lift them up to the clouds, whence 
 they fall upon the hills. Were it not for the sun the rain would soon 
 cease to fall, the springs in the hills would dry up, the brooks would 
 run out, the river would dwindle away, the roar of the water - fall would 
 die into muteness, and the wheel would stop for wish of exponent. 

 The wind, which is the motive force of windmill and of sailing vessels, 
 is another form of sun - baron. The atmosphere has been compared to a 
 great wheel carried round by the estrus of the sun. We know that when air 
 is heated it rise, and that the tropical parts of the land are hotter 
 than the polar regions. In the tropics, therefore, the heated tune rises, 
 and the colder air from the pole run in to fill its place, while the 
 position of the latter is filled by an upper stream flowing back from the 
 equator; and this goes on continually, and keeps the great atmospheric 
 wheel turn. Wherever a wind blows, the process is similar: it is the 
 sunday that causes the wind, be it zephyr, or gale, or hurricane. 

 " But, " you will say, " the sun does not ladder our steam - engines; it is 
 artificial heat, not natural heat, that changes the water into steam. " 
 Very true; but how do we get this heat? By burn wood or coal. For the 
 early we are clearly in debt to the sun, which make the trees grow that 
 furnish the fuel; and the ember is the remains of plants that grew long 
 before the creation of man, plants that were as dependent on
 thwt fills the buckets of uhe wheel; it is tkw watec-fall
thzt is thd real worker." No; it is the snn, wyich us a force behind the
wxter-fall, ws the wqter-hall is the forcx behind the wgcel. Wkav
supplies the wster-fall whth its never-fdiuiug stream? The rain that
fills the spryngs hibh up among the rillx, whedv c little brook has its
source--the rain tiat feeds the btook as it flows, and other brolks that
join it on its way, unjjl yr becomes thd river that descends jn the
water-fall. And what is the souree of the rqib? Tjg sun, whose cays tlrn
the waters of the aarth tp vapor, and lint thxm up to the clouds, whencx
they fall upon the rills. Wera nt not for the sun thw eain foulg soub
cexse tp rall, tje aprings in the hills qould dry up, the brpohw would
run ouf, the wider would dwindle away, the roar of the fatsr-fall would
die into sioence, and the wheel wluld stop for want of power.

The wind, which is the motive fosce oh dinbnills qnf of sailing vessels,
is another form of sun-powqd. Uhe atmosphere haf been compsrfd jo a
great wheeu carrnsd round by the heat of the sun. Qe know trat ehen air
is heated it rises, qnd that the rropical parts of che earth arz hottgr
than the polar regions. In tke trolics, thereflre, the hsxted air rises,
ana tme wolder air from the poles slows in vo fikl its olacg, while the
place lf thc latter is filled hy an u[per currejt flowing back from the
equator; and this goes ot cmntinualjy, anc keeps the gweat atmosphernc
wheel curnine. Wherever a wind blows, the [rocess is sikllar: it is tie
sun thae cayses the wiva, be it zephyr, or gale, or hurricabe.

"But," you will say, "thg aun does not ruu iur steam-enginex; ig if
agtihiciaj heat, not nadurau hdst, thxt changes bhe watrr into steam."
Very trge; bht how do we get tnif heat? Bi burning wood or coal. For the
former we wre cneacly in deft to the sun, which made the tdees grow thwt
furnish thq fucl; agd the coak is the remains of plants that grew loig
before the creation od man, plants that wgre as dependeit on
that fills the buckets of the wheel; the that is real worker." No; is force behind the as the water-fall the force behind the wheel. What the water-fall with its never-failing stream? The rain that fills the springs high among the hills, where a little brook has its source--the rain that feeds brook it and brooks that join it on its way, until it becomes the river that descends in the And what is the source of the rain? sun, whose rays turn waters of the earth to and them up the whence fall upon the Were it not for the sun the rain would soon cease to fall, the springs in the would dry brooks would out, river dwindle away, the the water-fall would die into silence, would stop for want of power. The wind, is the force of windmills and of sailing is another form of sun-power. The atmosphere has compared to a great wheel carried round by the heat of the sun. We know air is heated it and that the parts the are than the regions. In the tropics, therefore, the heated air rises, and the air from the poles flows in to fill its place, place the latter is by an upper current back the equator; and this continually, keeps wheel Wherever wind blows, the process similar: it is the sun causes the wind, be hurricane. "But," you will say, "the sun does run our steam-engines; it is artificial heat, natural heat, that changes the water into steam." Very true; but how we get By burning wood or coal. For the former are clearly in debt the sun, which made the trees grow that furnish fuel; the coal the remains of that grew long the creation of that were dependent
 that fills the buckets of the wHeel; it is thE wateR-faLl
tHaT is tHe reAl worker." No; it is THe suN, which is a force behind thE
wateR-fALl, as THe Water-Fall is tHE fORCe bEhInD thE wHEeL. What
SupPlies thE water-fall WitH iTs never-failiNG sTream? The raIn tHat
fills the sPriNgs higH uP amONg the HilLs, wheRe a litTLe brooK has its
soUrCE--the raIN that feEDS tHe brOok as it flows, and otHEr BRooks that
join iT on its WaY, UnTIL it BecOmes the rivEr That dEScends iN ThE
WATer-FAll. And what is tHe source of tHE raIn? The sUn, WhoSE rays tUrn
thE wATerS of the earth To vaPor, and lifT them uP To the clOUds, whenCe
they FalL upOn thE HiLlS. WeRe IT noT FoR thE Sun The rain wOuLd Soon
cEase TO FALl, thE spRingS in thE hills would drY up, The bROokS woulD
run oUt, thE rIver wOuld dwIndle AwAy, the roar of the wAter-Fall would
Die InTo sIlEnce, aND the whEel WouLd stop fOr want oF PowEr.

tHE WiNd, which is the motive FoRCE oF windmilLs and oF SaIlINg vesselS,
iS anOtheR FOrm of Sun-pOWeR. The atmoSphere HAs BeEn compaReD to a
grEaT whEel CarriED rouNd by thE heat of tHe sun. wE know that when aIR
is heated it riSEs, AND tHAt thE trOpical parts Of thE EartH are HOtTer
THan thE polaR rEGiONs. In the tropics, thereFoRe, the hEated Air rises,
and thE colder air FROM the poleS floWS iN To fill its place, While The
place of THe latter Is filLed by an uPper curreNT Flowing bAck FroM thE
eqUAToR; and this goes oN COntiNuAlly, and KeePs the grEat AtmOspHerIc
Wheel turnIng. WhereVeR a WiNd BloWs, the PRocess is SiMilAr: It iS the
sUN that cAuses The wInD, bE It zEphyr, or GAlE, OR hurRiCaNe.

"BuT," yoU wIll saY, "the SUn dOes not rUn our steaM-enGInes; It Is
ArtificIal heat, not natUrAl heat, that ChAngEs the wATEr into stEam."
Very true; but how do we geT This heaT? By BurniNg woOd or coal. FOr tHe
formEr wE Are cleArly in Debt tO tHe sUN, Which MADe The TrEes grow thaT
FUrnIsh thE fUel; aNd the coAl is the remains of plANts That grew long
bEfoRe thE CReAtiON oF Man, PlANts THAt were as dependeNt on
 that fills the buckets of  the wheel ; itisthe  w ater -fal l
that is ther ealworker." No; it is the  sun,  w h ichi sa for ce behi n dt h e
w at er -fa ll ,  a s the  wa ter-fal l is the f orc ebehind the w h ee l. What
su ppl ies the wate r-f all wi th  it s  neve r-f ailin g stre a m? The  rain tha tf ills t h e sprin g s  h ighup among the hill s ,w here a littlebrookha s  i t s 
so urc e--the rai nthatf eeds th e  b r o o k a s  it flows, an d other bro o ksthat
j oi n i t  on it s way ,u nti l it become s th e river t hat de s cends i n  the
wa ter-fa ll.  An d wh a tis  th es our c eoft herain? Th esu n, wh oser a y s  tur n
t he w aters  of the earth  to  vap o r,and l ift t hemup  to t he clo uds,wh ence
they fallupon  the hill s.We reit  notf or the  su n t he rain  woulds oon 
c e a s eto fall, the sprin gs i nthe hill s woul d  d ry up, thebr ook s wo u l d
run  out ,  t he river  would dw in dle awa y,  the r oa r o f t he wa t er-f all wo uld
dieintos ilence, and th e  wheel woulds to p fo r  wan t o f power.

T he w i nd,whic h  i s t h e mot ive f or c eo f windmills and ofsa ilingvesse ls,
is anothe r form ofs u n -power.Thea tm o sphere has bee n com pared to a great wh eel c arried r ound by t h e  heat of  th e s un.  We k no w that when a i r 
ishe ated it  ri ses, an d t hat  th e t ro pical par ts of th eea rt hare  hott e r
than t he  po la r r egion s . In t he tr opic s,  t h ere fore, t h eh e ated  a ir  ris es, 
a nd th e co l der  air fr om the po les flow sin  to fil l its place,wh ile the
pl ac e o f thel a tter isfilled by an upper curr e nt flow ing  back  fro m the
equ ato r; and  th i s goes  on co ntinu al ly, a nd ke e p sthe  g reat atmos p h eri c
whe el  tur ning. W herever a wind blo w s,the process i s s imil a r :iti st hesu n  th a t  causes the win d, be it z ep h yr , or gale, orhu rricane .

"But ," yo u  will s ay, "thesun doesno t ru n our  steam-eng ines; it  is
artif i cialh ea t, no t n atural  h eat , tha t chan g esthe w ater i nt o stea m."
V er y true;but how do we get thisheat?By bu rni ng wood o r c o al.  For theform er we arecle arl y indeb t  to t he s u n,  wh i ch ma de t h e trees g r ow  th a t 
f urnish thef u e l;and t hec oal is  the  remains of plant s  that grew lon g
be f o rethe crea ti on of man, pla nts  t h a t were a sdependent o n
 that_fills the_buckets of the wheel;_it is_the_water-fall
that is_the_real worker." No;_it is the_sun, which is a_force behind the
water-fall,_as_the water-fall is the force behind the wheel. What
supplies the water-fall with its never-failing_stream?_The rain_that
fills_the_springs high up among the_hills, where a little brook_has its
source--the_rain that feeds the brook as it flows,_and_other brooks that
join_it on its way, until it becomes the river_that descends in the
water-fall. And what_is the source_of_the_rain? The sun, whose_rays turn
the waters of the earth_to vapor, and lift them up_to the clouds, whence
they fall upon the_hills. Were it not for the_sun the rain would soon
cease_to fall,_the springs in the hills_would dry up,_the brooks_would
run out, the_river would dwindle away, the roar_of the water-fall_would
die into silence, and the wheel_would_stop for want_of_power.

The_wind, which_is the motive_force_of windmills_and_of sailing vessels,
is another form of_sun-power._The atmosphere has been compared to a
great_wheel carried round by_the_heat of the sun._We know that when air
is_heated it rises, and that the_tropical parts_of the_earth are hotter
than the polar regions. In the tropics, therefore, the_heated air rises,
and the colder air_from the poles flows_in to_fill_its place, while_the
place_of the_latter is filled by an upper current_flowing back_from the
equator; and this goes on_continually, and keeps the_great_atmospheric
wheel turning. Wherever a wind blows,_the process is similar: it is_the
sun that causes the wind,_be_it_zephyr, or gale, or hurricane.

"But,"_you will say, "the sun does_not run our_steam-engines; it is
artificial heat, not natural heat,_that_changes the water into steam."
Very true;_but_how do we get this heat?_By_burning_wood or coal. For the
former_we are clearly in debt to_the sun, which made the trees grow that
furnish the_fuel; and the_coal is the remains of_plants_that_grew long
before the creation of man, plants that were as_dependent on