BETULA LENTA, L. 



Sweet Birch, Cherry Birch, Black or Mahogany Birch. 



k 



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TRANSVERSE SECTION. 



SECTION. 



TANGENTIAL SECTION. 



racbe-Birke, ^ Bouleau doux, Sp. Abedul dulce, 



B. A., LowvJDe, N.'Y., U. S. 



