44. BETULA LENTA, U 



Sweet Birch, Cherry Birch, Black or Mahogany Birch, 



TRANSVERSE SECTION 



RADIAL SECTION. 



> I 



TANGENTIAL SECTION. 



.*W. Kireche-Birke. IFr-. Bouleau doux, Sp. Abedui duL 



PublJshed and Sections made by Romeyn 8. Hough, B, A., Lowvlile, N. 'Y., U. S. A. 



