Show ARID REGIONS REGION S paper read before clio I 1 ilo 60 senica society by misa dewey fam earns worth over tho vast surface of tho the earth thoro there areas of 0 land and am barren and desolate somo almost devoid of f either plant or animal anin itil life and affias less 1 barren arren temperature location and altitude Iti tudo the fertility of 0 all regions great areas of land are arid because ot of surrounding ii mountains oiin taina whose windward slopes bateh tile vapor latison winds condensing them and causing in precipitation while their leewai 1 I 4 receive very little moisture and are consequently quito quite barren barrell th the 1 1 mat basin it of tile rocky mountains moun bains is clio gest u ost example of this thia condition low lands avor which tile trade winda blow tire made dm by chit drying action of their warming nir air for as the winds become warmer they take up ill tiny any moisture which thoy find instead of riving giving up that flioy linao lave alio ahi can sahara and tho central australian alLan it sorts aro are thus explained it is entirely on account of their dryness and not because of tile i infertility of cf their soils boils these to lio bo barren bairen it to suppose that lands bordering oceans would receive abundant raiff nl tito average abou amou tit of precipitation along the pacific coast through washington and oregon is ia front froin bisty to ond hundred inc lifs it a year ca r ailo west winds winda from tho cho warm I 1 acidic arhtur ed with ire aro chilled to alo dew point i as aa they begin their journey over lands tanil ti nil an t rains cecur in in parts parta tit of clorida Ilu rida arid and the states st ilca bordering burt loring fill the Gult on r hand thel alnio 0 tire aro di tracts in ill nevada southern i anda an dAtiz biz 0 0 ona aa where tile r rainfall is less than five inches inc bics tics a year and over inot ino t or of Ive noonda and utah ut all etli aith parts of or arizona now new me Afus X kp colorado Col orildo tind and tile tho anio amount of raiff dl i is below tami inches it a yo ar A sti thill 11 wider belt r dehing 11 from mcgon iceon far into and sou th ward ard has liss less li ss than wicnty inches idel lic flenois albro iti thu tho great region of ahti unit td cd stated state tito tho bolst winda from froin tit thea ocean loo lioio much of their moisture in passing over tiu or tile coastal holt belt and all have little rain to distribute in ili the in todor in ill southern and lower Calif california and northern afonico eo tilt arid region to li tile very const con st of tit tho ocean because of tile tho wal ilith of tilt land and as compare d to the limon alius showing tant mero to the ilia ocean oct an dolis not caulk abundant rain ulloa clio air air fion tile ovean ocean ili is cooler thim tho ad adjacent jacone land then what ever wind blow f oni nm ocean meark to filid havu alii ir capacity for Illo iture increased inc leased extreme nort huyn HAti rope and asin abin border tile arctic mccan ur aro filid iid dittli utin tako take winter tor for most of tio year on oil great areas af f land wo we may be ba afo in saying hainy that there is a wet border bolder and all a dry interior this is id strikingly truo true of australia which lius litis nn an interior arci having less than ton tell of af rainfall la abear ono of tile largest dry areas in tile world ia 13 tho of north africa 11 II Is ia it a typical desort dc bort a region of liw im I m lands landh wel it by tile trade winds from tho mod on tile north which is ib rela rein lively ti voly cooler than tile tho land consequently tho clio winds retain they already have find and curry carry away tiny which comes I 1 in their courso sahara is not at desert from in or tilty of tho soil boil as ah is 1 luven loven ly by tile horo and of fo a a or which are controlled by the pres of water r citey aro are commonly mado chor springs or streams low flow upon tilt jbf open C yat at tile 6 baha ase of 0 uplands and mountains or near the ada of midi where tho the water can bo be distributed in ci inala or tit nt points where gi ground water walor may bo be found in ili tile nearly dry channels ot or withered streams many of ol 01 our r own settlements built on tile tho banks of niall st roams tire aro nothing more than As wo have said the bartenetti barTe nesti of many deserts is simply imply duo due to their not to an con of lock or boil choro or st reanis moisten mhd wiil kil grass ara and may grow naturally if tile tho surface can IKS it its may bo increased fo as to support permanent tho contrast ponti ask between tho the I 1 habitable ii Hota botand iid rutur rr enness Is la 10 grateful grated tit that all ano aasi asi lit in the thedo wrt has como come to servo as ali a poetic agur but aro ar a only relatively delightful ili cir anter supply is ia often limited and hopin v their products few in ili variety md few in ili quantity their inh abitanta have h cieto to tho dis oj of iso io lation ns as us as do tit the ot 0 islands alio oases of f in ill tile tho sahara alro fifty att milca amt of C into ciaio aitho lirot balling altinK li place oil the pleat dewit id to tile west went lit tie chain 9 1 I from its ita co conditions ansin in nn an cicet fillieo fil imp lieg geem melila to ta have bred b red mistrust for strange ra n re loolu 1 ul hi ili as intruders anil and their modem ways of doing doin things aro plant blant and animal iffert scanty chint in IS ds arts crts crt r becal lse ot ol difficulty in food and dwater water the cosof of ther tio poll oil |