Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 752
w of the prisms cutin the direction of theirlength (Fig. 387); andthey are frequently seento be marked by delicate transverse striae (Fig. 388), closely resem-bling those observable on the prisms of the enamel of teeth, to whichthis kind of shell-structure may be considered as bearing a very… … 668 SHELLS OF MOLLUSKS. Fig. 387. viewed longitudinally, and will be seen to be more or less regularlymarked by the transverse striae just alluded to. It sometimeshappens in recent, but still more commonly in fossil shells, thatthe decay of the animal membrane leaves the contained prisms without…
Microscopy · Biology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Report on the Geological Survey of Iowa. By J. Hall, J. D. Whitney. [With maps.] vol. 1 (1858)](https://img.insideoutlibrary.com/img/200/bl-bl_001813577_2-170-1.webp)
