OCR Text |
Show Canyon walls by merely ( 368 -0008 ) ( filling filliiig ) up its , ( bod b-ed bed ) a , ( rCaxv few ) ( feet foot ) above where it is at ( the tile ) present ( time thne ) . , I Speaking generally , ( he lie ) would say the box ( canyon canyon't canyont ) is eight hundred to a thousand feet , while the ( rivar rivu ) Surface is not more than six hundred , Moab to the junction , a distance , speaking from memory nowr of , say ( sixty-seven sixtyseven ) miles , ( the tile ) river has a fall ofr ( I'oughly Ioughly Toughly ) , ( sixty-seven sixtyseven ) feet . ( R . 1303 . ) 1It is an ( unescapable uneseapable ) law of nature that this ( river river- river ) ( must niust ) . create friction of ( sixty-seven sixtyseven ) feet , use up , energy corresponding to a ( sixty-seven-foot sixtysevenfoot ) fall in going from Moab to the junction . If the fall ( were 'Were Were ) ( twice twico ) ; that great , it would be necessary for the river to create twice that much friction . The friction is an inverse function of the depth ; the ( less 'less less ) the depth , the greater the friction per mile . . Therefore , ( with Adth ) a swift river flowing ( on oil ) a steep slope with an abundance of sand with which to build a bed , the steeper the slope the more shoal , the river . They have experimental data ( on oil ) that , also . The steeper the slope the more shoal the river . ( "With With With ) a river flowing sluggishly , it will build its bed so as to have on ( an ail ) average a deep ( river riirer ) . The ( Mississippi Afississippi ) River in its lower section has a depth of around one hundred feet . It has ( more inoTe ) volume at Vicksburg than it has at New Orleans . The Chuffolia , leaving at ( Eed Red ) River landing , ( takes tahes ) ( approximately approxiiiiatelv ) ( twenty-five twentyfive ) per ( cent celit ) of ( the tile ) , flow . |