Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 753
Section of the Shell of Pinna, in thedirection of its prisms. base, the lines of junction of which correspond with the trans-verse striation; and this view corresponds well with the fact,that the shell-membrane not unfrequently shows a tendency to Fig. 388. … Oblique Section of Prismatic Shell-substance. split into thin laminae along the lines of striation ; whilst we occa-sionally meet with an excessively thin natural lamina lyingbetween the thicker prismatic layers, with one of which it wouldhave probably coalesced, but for some accidental cause…
Microscopy · Biology
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