Report U. S. F. C. 1280.—Coste. Oysters. PLATE Ii. 
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Fic. 2.—Artificial beds surrounded by stakes. 
Fig. 3.—Stakes arranged in a straight line and united by a rope to 
which are suspended the fagots intended to receive the young oysters. 
Fias. 4, 5, 6, 7—Oysters ready to leave the mantle of the parent, enlarged a hundred and forty times. 
Figs. 4, 6, 7, show one side. In the three last, the cushion, provided with its natatory cilia and the 
muscles which move it is outside of the shell and protrudes beyond the mouth, which is itself ciliated. 
