OCR Text |
Show " Purthor JSaamMatwn 897 B * Vol . : - 191 , , ( P- P ) 35.11- '" ? 3513 ) : * - , : - , < - ( -The The ) ( sand'Nvaves sandNvaves ) are quite different ( from froin ) 1 ( TaAfop- TaAfop ) ! a , rapid ; sand waves are regular . . They a4lndb ' , . ' , 4 "' high . . The waves in the bad rapids vary very murflrf ( -some some ) of them rise up to ( heighcs heights ) of probably ( te'4'' te4 ) £ fivelve feet . An ordinary rapid , they are ( aboiifc abollb ) similar in size . By the sand waves being more ( rqgul- rqgul ) ( 'lax lax ) be means they just run in succession of wfWbs , ( rig"Llit rigLlit ) oil down the main current of the strearm 4ilrdil they get to the lower end from where they start ; they are just like a succession of waves in a ( congid- congid ) ( ei-able eiable ) body of water that the wind is blowing , riiri ( regular togrular ) until they start to break . They ( generally gend'railk gendrailk ) start to break about the center , because ( thafe tI4- tI4 ) . , Js where the waves get the highest . These sand waV68 dre in the main current of the river ; that is where the principal waves form ; ( wherever -wherever wherever ) there is ( consid- consid ) erable current these sand waves ( will ivill ) develop . They are in , where the quiet water would be . The sand waxes form on the riffles or rapids . So that in the portion of the year when these sand waves do not occur the - ( water Nater ) at that spot would be more or less comparatively quiet . He has navigated the river through these sand waves ; would generally work to get along the outside edge of the waves , where the water would be some ( shallower sliallower ) , but there is not that action to bother with the rising and ( fall- fall ) ing of the waves . |