The Amebic an Geologist. 
Vol. XII. Plate VI. 
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PHI I.LI PSASTREA BIL.L.IKQS] Calvin. 
Pig. 1, Portion of the weathered surface of a large coralluni, showing 
size and general features of the coral lites. 
Pig. 2, Portion of polished surface of another coralluni, showing de 
tails of structure. 
