Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 513
Transverse and Vertical Sections of a Fossil Wood; show-ing the separation of the Woody plates, a o, a a, by the verylarge Medullary Rays, b b, b b. STEM OF DICOTYLEDONS. UQ thickness. This section also gives an excellent view of the ductsb b,b b, which are here plainly seen to be formed by the…
Microscopy · Biology
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