54. ACER N EG UNDO, L. 



Box-Elder, Ash-leaved Maple, Negundo, 





TRANSVERSE SECTION. 



RADIAL SECTION 



TANGENTIAL SECTION 



Eschenblattriger Ahorn. Sp, Negundo de Arce, 

 eF*. Erable d feuilles de frene. 



Published and Sections made by Romeyn B. Hough, B. A.; Lowvllle, N Y., U. S. A. 



