Fig. 83 — Modified drill-trap dredge. Approximate dimensions 

 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. 



