OCR Text |
Show rushing ( flood-swollen floodswollen ) 109 , and . ( boulder-laden boulderladen ) . waters of such tributaries dashed completely , . , across the ( channel ehaiinel ) and filled it with boulders . , For the river to be so powerless under such ( circumstances circunistances ) , its velocity and also probably its ( volume volimie ) must have been far exceeded by the velocity and volume of the tributary . Testimony ( in iii ) the record as ( follows folloivs ) shoivs the ( ex- ex ) ( treme trenie ) ( instability unstability ) of the bed of the San Juan ( River Mwr ) Jones ( Vol . 3 , page 375 ) ; Adams ( Vol . 3 , page 424 ) ; ( KTielsen Yielseii ) ( Vol . 3 , page 447 ) ; Butts ( ( Vol Voi ) . 3 , page 552 ) ; Hyde ( Vol . 4 , pages 598 , 621 ) ; Spencer ( Vol . 4 , page 704 ) ; Wetherill ( Vol . 9 , page 1609 ) ; ( Zalms Zabns ) ( Vol . 11 , ( pages pacres ) 2058 , 2079 , 2080 ) ; Allen ( Vol . 12 , pages 2241 , 2254 ) ; Loper ( Vol . 12 , pages 2315 , ( 2323 '2323 ) ) ; ( Karshberger E-'Larshberger ELarshberger ) ( Vol . 13 , page 2508 ) ; ( Menden- Menden ) hall ( ( Yol Vol ) . 19 , page 3508 ) ; ( Miser Afiser ) ( Vol . 21 , pages 37607 3768 ) . In addition to the shifting described , the ( move- move ) ment of the bed of the river in sand waves is ( showft shown ) to be of common occurrence . These waves have been ( described describecl ) by Loper , Miser , Hite ( ( Yol Vol ) . 20 , page 3627 ) , and others , as ranging in height from S to 7 feet ( Photo , Ex . 314 to 318 ) often so close together that the ( ordinary OTdiuary ) rowboat ( would woidd ) cut across two of them at the same time . They are associated only with streams which are heavily laden ( with ivith ) silt . Pierce in Water Supply Paper No . 400 ( Exhibit 59 ) describes their appearance on the San Juan as follows : u |