OCR Text |
Show greater , the ( sections sectioiis ) more ( 63 613 ) ( contracted mitracted ) , ( and 'and and ) , ( under mider- mider ) ( flic tJie ) laws of hydraulics , higher velocities must ( ob- ob ) tain . How much higher the velocities ( arc are ) can ( not not- not ) be determined except by deduction . Almost ( with with- with ) out exception ( witnesses dtnesses ) ( , . ) for the Government ( testi testi- testi ) fied that ( rowing rowhig ) ( upstream iipstream ) in any stretch was ( prac prac- prac ) ¬ tically impossible . If the average rate of rowing is 4 miles ( an aii ) hour , data already given show the slow , progress that could be made upstream . Witnesses , for the State testified that upstream progress was , ( made -made made ) by ( rowing rowhig ) and towing , an indication that velocities were probably in excess of 4 miles . ( Testi Testi- Testi ) mony by operators of motor boats showed slow ( up- up ) stream progress ( Photograph 249 , Exhibit 11D ) , but it was not always possible to differentiate ( be- be ) tween retardation due to shoals and bars and ( re- re ) tardation resulting from velocities alone . As shown in the testimony of Freeman , Vol . 14 , page 2571 , Marrs , Vol . 13 , page 2458 , and ( other- other other ) - ( power-boat powerboat ) operators , they could make little or no progress through rapids and rapid water stretches ; and the testimony of Johnson , Vol . 16 , pages 3017 , 3027 , regarding the operation of the . steamer Chas . H . Spencer , shows that a brake in the form of a ( 100-foot 100foot ) chain ( was ivas ) used while going downstream in . order to make steering possible . Other indications of high velocities are shown by the testimony ( of of- of ) State witness Fotheringham , Vol . 28 , page 4984 , |