Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 413
ActinoplycJius undulatus:—A, side view;B, front view. … DIATOMACEJE :—HELIOPELTA ; AEACHNOIDISCUS. 351 structure is observable. This maybe shown by careful adjustmentof the focus to exist over the whole interior of the valve, even onthe divisions in which the circular areolation is here displayed; andit hence appears that this marking belongs to the…
Microscopy · Biology
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