Fig. I. — Brush Pile, 12 Years Old, No Grazing. The Luxuriant Growth 

 of Grass Suppresses the Pine Seedlings Which Would Otherwise 

 Become Established in the Edges of the Pile. 



F — 49I77A 



Fig. 2. — Same as Above; Bunch Grass Cropped Down by Cattle. Under 

 These Conditions the Edges of Piles Afford Good Conditions for 

 Seedlings Which Draw upon the Moisture Stored Under the Brush. 



Fig. 3. — Burned Brush Pile, 1 1 Years After the Fire. Negligible 

 Amounts of Herbaceous Vegetation Have Entered. Seedlings of 

 1919 Germination Are Abundant on Such Sites Where Protected 

 Against Grazing. 



PILED BRUSH. 



