Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 458
Portion of transverse section of large stem ofConiferous Wood (fossil), showing- part of twoannual layers, divided at a, a, and traversed byvery thin but numerous MeduUary Eays. Fig. 171 … Portion of vertical section of the samewood, taken in a radial direction, showingthe glandular woody fibres, without ducts,crossed by the MeduUary Eays, a, a. Fr2 Portion of vertical section ofthe same wood, taken in a tan-gential du-ection, so as to cutacross the Medullary Eays, 436 MICROSCOPIC…
Microscopy
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