210 WOOD AND FOREST. 



the following: Larch {Larix laricina) , white spruce {Picca canaden- 

 sis), dwarf juniper (Juniperus communis), black willow (Salix 

 nigra), almond leaf willow (Salix amygdaloides) , long leaf willow 

 (Salix fluviatilis) , aspen (Populus trem.uloides) , balm of Gilead 

 (PopuJus balsamifera) , and haclcberry (C'eltis occidentalis) . 



THE DISTRIBUTION AND COMPOSITION OF NOnTH AMERICAN FORESTS. 

 Refere.xces.-* 



Sargent, Forest Trees. Intro, pp. Shaler, I. pp. 489-498. 



3-10. Fernow, For. Inves., pp. 4r)-51. 



Bruncken, pp. .5-16. Fernow. Economics, pp. .S31-3C8. 

 Roth, First Book, pp. 209-212. 



*For general bibliography, see ]). 4. 



