Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 816
er, are usually more or less obscured by fossilising material. A carefulexamination will generally disclose traces of them in the middle ofthe partitions that divide the chambers (fig. 575, b, b), while fromthese may be seen to proceed the lateral branches (c, c), which, afterburrowing (so to… … Fig. 576.—Internal cast of two of the cham-bers of Nummulites striata, with thenetwork of canals, b, in the marginalcord communicating with canals passingbetween the chambers. well seen in the internal castrepresented in fig. 576. A very interesting modifi-cation of the Nummuline typeis presented…
Microscopy
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