Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 616
h it would seem asif the consolidation ofthe animal basis by calca-reous deposit had taken-place whilst the formerwas as yet in the condi-tion of a uniform gelati-nous sarcode, before thecommencement of anydifferentiation into cell-wall and cell-contents.A very curious appear-ance is presented by… … 594 MOLLUSCOUS ANIMALS GENEEAI.LY. other by intervening membrane, and possessing a crystallinestrncture resembling that of the mineral termed Wavellite.Approaches to this curious arrangement are seen in manyother shells. 339. The internal layer of Bivalve shells rarely presentsany distinct…
Microscopy
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