Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 775
the successively formedchambers ; for sometimes it opens out very rapidly, every whorlbeing considerably broader than that which it surrounds, in con-sequence of the great excess of the size of each segment over that of itspredecessor, as in Peneroplis, fig. 548 ; but more commonly there is-so… … Fig. 548.—Foraminifera:—Penerojplis and Orhiculina. Botalia represented in tig. 566. An intermediate condition is pre-sented by Botalia, which may be taken as a characteristic type ofa very large and important group of Foraminifera, whose generalfeatures will be presently described. Again, a spiral…
Microscopy
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