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THE CONSERVATION OF OUR OYSTER SUPPLY.
Fig. 10.—Examining a Tile covered with Oyster Spat.
ponds; but the result in the latter seems to be much more satisfactory. The pond, having been macadamized, is first thoroughly dried "for two months. . . . doing away with all animal and plant
Fig. 11.—Disengaging Seed Oysters from a Tray Collector.