Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 866
such that if a portion of a fracturededge, or any other part from which the investing membrane hasbeen removed, be laid upon fluid of almost any description, this willbe rapidly sucked up into its substance. A very beautiful exampleof the same kind of calcareous skeleton, having a more regular… … Pig. 613.—Section of shell of Echinusshowing the calcareous network ofwhich it is composed: a a, portionsof a deeper layer.
Microscopy
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