. Guide leaflet. A DETAIL OF THE GKOUPShowing the steel framework anchoring a speci-men of elkhom coral in position. BRAIN CORALS GROWING AT THE BASE OF DEAD CORAL BEAMSWelded together by overgrowths of L27/io//iawmor2, a calcareous alga, or sea plant, which encrusts thedead coral with an overlying blanket of additional limestone, thus adding materially to the bulk of the reef 10 NATIRAL IIISTOHY

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901