. Carnegie Institution of Washington publication. 62 GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. their height decreases toward the sides. A comparatively small number of pillars in the central part originating in the wall of the embryonic chamber and extending to the periphery. Horizontal section shows that the equatorial chambers are regularly hexagonal and fairly thick-walled, and that those of successive annuli are of very different sizes. Diameter up to 9 mm.; height up to 3 mm. or Please note that these images are extracted from scanned page images that may have been digitally enh
. Carnegie Institution of Washington publication. 62 GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. their height decreases toward the sides. A comparatively small number of pillars in the central part originating in the wall of the embryonic chamber and extending to the periphery. Horizontal section shows that the equatorial chambers are regularly hexagonal and fairly thick-walled, and that those of successive annuli are of very different sizes. Diameter up to 9 mm.; height up to 3 mm. or Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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