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Page:Popular Science Monthly Volume 56.djvu/251

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PSM V56 D0251 Various oyster sizes from the farm.png
1, native oyster spat on clam shell; 2, same on inside of oyster shell; 3, 4, 5, native spat (Ostrea lurida) on Eastern oyster shells; 6, showing size and appearance of native spat one or two months old.