Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 788
e of chamberlets might be describedas a continuous annular passage dilated into cavities at intervals.On the other hand, each zone communicates with the zones that areinternal and external to it by means of passages in a radiatingdirection ; these passages run, however, not from the chamberlets… … Fig. 551.—Orbitolites. Ideal representation of a disc of complex type. internal and external to it. The radial passages from the outermostannulus make their way at once to the margin, where they termi-nate, forming the pores which (as already mentioned) are to be seenon its exterior. The central…
Microscopy
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