Bull. U. S. F. C. 1902. (Page 38.) 
Plate 7. 
AAP OF THE OYSTER AND SEAWEED CONCESSIONS IN ONE OF THE ESTUARIES OF NIHOJIMA, TO SHOW HOW COMPLETELY THE CULTURAL AREA IS DEVELOPED. 
I, Shibi bearing purple seaweed; II, Shibi bearing oysters; III, grounds for rearing oysters; IV, cultural area for other mollusks, Tapes, Area, etc. 
