Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 780
uch MoUuscous shells aspresent distinct appearances of structure (this being especiallythe case with the Brachiopoda, and with the families ofLamellibranchiate bivalves most nearly allied to them), maybe unerringly identified by its means, when the external formof these fragments would give no… … EYE OF TUILOBITE.—POSSIL TEETH. 757 only does a microscopic examination of the casts which have been preserved of the surface of their eyes (Fig. 343), serve to show the entire conformity in the structure of these organs to the composite type which is so remarkable a characteristic of the higher…
Microscopy
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