ILLUSTR/.TIONS 



FIGURE PAGE 



le Chir.sok Sairaon with dorsal and ventral fin injuries 



observed at Big White Salmon Hatchery «<>ooo>.*«5 



2, Chinook Salmon with dorsal and ventral fin injuries 

 plus the completely encircling abrasions observed 

 at Big White Salmon Hatchery. •oe<>ooooo<..»»6 



3o Chinook Salmon with dorsal fin injuries obscrvsd 



at Bonneville Hatcheryo oeooo»oooooo...»3 



4o Ctiinook Salmon with ventral fin injuries and completely 



anciroling abrasions observed at Bonneville Hatcheryo • 9 



5o Su'bm'rfrsible chamber built by U. S. Corps of Engineers 



to observe fish movement in the Bonneville fish ladder oil 



So Wooden float used in experiment to detennine direction 



and influence of wind drift below Bonneville Damo o o «13 



7o Position of wooden float in water* oo.oo.oooo ol4 



&o Location and numbers of dead fish found between 



Bonneville Dam and Cape Horno 1946 « ooooocooo o20 



9o Loc*!.tion and numbers of dead fish found between 



The Dalles and Bonneville Damo 1946 .<><>.<.<> oo . .21 



