THE PARTS OF A TREE. 



FIG. 2. Roots of the Western Hemlock. This young tree started on a fallen 

 Red Fir; its roots spread under the moss and litter, and when fire came they 

 were exposed. Olympic Forest Reserve, Washington. 



FIG. 3. Upturned skeleton roots of a Red Fir. The small roots have heen 

 burned away and the others cleared of soil by the fire. Olympic Peninsula, 

 Washington. 



