Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 776
, but which, whilestill Eoraminiferous, areformed upon a plan ofstructure altogether dif-ferent. On account of theminuteness of their parts,and the completeness oftheir fossilization, theirstructure can only beelucidated by sectionsthin enough to be ex-amined by the micro-scope with… … Section of Orhitoides Prattii, parallel tothe surface; traversing at a, a, the super-ficial layer, and at b, b, the median layer. 754 MICROSCOPIC GEOLOGY. vary in size, in different species, from that of a four-penny pieceto that of half a crown) is rnbbed-down so as to display its in-ternal…
Microscopy
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