48. POPULUS MONOLIFERA, AIT. 

 Cottonwood, Necklace Poplar, White Wood, Big Cottonwood. 



TRANSVERSE SECTION. 



RADIAL SECTION, 



TANGENTIAL SECTION 



Bosenkranz-PappeL eFt. Peuplier, Sp. Alamo de collar. 



Published and Sections made by Romeyn B. Hough, 8. A./ lowvllle. N. Y., U. S. A. 



