CHAPTER LV.--Fishing--The ocean as a field--The crops it yields--The
sponge--Transplanting sponges--Coral fisheries--The coral an animal--The discovery of this--Oyster fishery--The oyster a social animal--The young oyster--Oyster culture--Dredging for oysters--The American oyster fishery--Pearl oysters--The value of the pearl fishery--Shark fishing--Cuttle fish 627