BULL. GEOL. SOG. AM. VOL. 9, 1897, (PL. 6 
STRAIT) OF, F UCA_A-~ 
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= 
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t - 
7 
EXPLANATION OF 
DEPTHS OF CHANNELS 
-50 TO -100 
-100 TO -i50 as 
PUGET SOUND BASIN 
Showing network of hollows and their depths with reference to sealevel 
