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BULLETIN OF THE BUREAU OF FISHERIES 
Figure 6. — Figure of modified drill-trap dredge. Approximate dimen- 
sions are: Length, 36 inches; width, 20 inches; height, 10 inches. Sides 
and back to be covered with fine hardware cloth so as to prevent the 
escape of the trapped drills. The lid to be covered with wire screen 
small enough to prevent oysters from falling into trap but large enough 
to allow the drills to pass through easily 
