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Show . . is ( five fi'V'e fiVe ) feet in fall . At 546 the various stages of the . . river a survey will show a different profile . As the river rises , usually a number of rapids are , obliterated on account of the height of the water . ( "When When When ) he says obliterated he means instead of , having several small rapids you will have one large one . . The presence of rocks or sand bars make a ( dif- dif ) ( ference ferenee ) in high water . Its influence would be shown ; it depends entirely on the stage of water . ( "With With With ) a ( thirty-foot thirtyfoot ) rise in the lower Colorado , in Marble canyon , you might not see the result on any rapid at all , on account of a sudden rise , but Jn a ( twenty-foot twentyfoot ) rise you might see quite an ( in-flu- influ ) ence in the surface of the water , it would be ( per- per ) ceptible , yet it ( wouldn't wouldnt wouldn ) be what a ( swift-water swiftwater ) ( river- river ) man would call a rapid . He would rather go down in high water than in low water . He ( wouldn't wouldnt ) like to have it too high , though . The difficulty ( which -which which ) arises from a rapid is not ( neces- neces ) sarily from the swiftness of the water or the amount of drop , but it is from theobstacles in the way of the boat , combined with that swiftness ; it is the result of rocks and boulders in the stream that produces all kinds of waves and cross ( cur- cur ) rents , and so forth ; what the river boatmen ( con- con ) sider most dangerous is to get between those rapids , , between those rocks . If they had a chute right through , they ( wouldn't wouldnt ) consider it difficult . . But |