Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 620
Tubular Shell-structure of Anomia. FiGr. 253. … Vertical section of the lip of one of the valves of the shell of Unio .—a, b, c, successive formations of the outer layer; a, V, c, the same ofthe inner layer. clearly show the mode in which the operation is effected.This figure represents a section of one of the valves of Uniooccidens, taken…
Microscopy
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