Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 777
Portions of the same section, more liigMy magnilied,—a, superficiallayer j h, median layer, walls of these last, minute punctations may be observed, whichseem to be the orifices of connecting tubes whereby they areperforated. The relations of these two kinds of structure toeach other, are made…
Microscopy
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