70. BETULA POPULIFOLIA. MARSHA 

 White Birch, Poplar-leaved Birch, Old-field Birch, 



TRANSVERSE SECTION 



RADIAL SECTION 



TANGENTIAL SECTION 



Pappelblattrige Birke S^>. Abednl bianco, 

 IF^. Bouleau blanc, 



Published and Sections, made by Romevn B. Housrh. B. A.. Lowville. N Y.. U. S. A. 



