Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 757
mineraltermed Wavellite. Approachesto this curious arrangementare seen in many other tshells.568. There are several Bi-valve shells which almost en-tirely consist of what may betermed a sub-nacreous sub-stance ; their polished surfacesbeing marked by lines, butthese lines being destitute ofthat… … Section of hinge-tooth of Mya arenaria. and with the common Oyster. In the internal layer of by far thegreater number of Bivalve shells, however, there is not the least ap-proach to the nacreous aspect; nor is there anything that can bedescribed as definite structure ;* and the residuum left after…
Microscopy · Biology
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