U. S. B. F. — Doc. 890. 



Plate XII. 



PIG. 1.— PATENT TONGS, USED TO SOME EXTENT IN TAKING OYSTERS 

 IN THE LOWER PART OF CHESAPEAKE BAY. 



FIG. 2.— UNLOADING OYSTERS BY MEANS OF A CRANE OPERATED BY A 

 DONKEY ENGINE IN THE SMALL BUILDING AT THE RIGHT. 



(Photo from Prof. E. N. Cory, Maryland State University.) 



