YELI/OW PINE REPRODUCTION 639 



duction would have been entirely destroyed on a less favorable growing 

 site. No seed in 1919. 



Plot No. 5 



Exposure: N. Gentle slope to open valley. 



Timber : Large mature. 



Cutting: ;3 or 4 large trees cut. 



Soil quality : Excellent black loam. 



Soil moisture : Excellent. 



Ground cover : Practically none. Bare humus soil. 



Seed trees : Splendid 30-inch mature tree. 



Brush disposal : Merely looped and left. 



Grazing, C&H: Heavy. 



Grazing, S&G : Very heavy in former years. None in past two years. 



Reproduction : Outlying and pre-existent 6-15 years old good. Some 

 few made their way in edges of iDrush. Around the stumps none except 

 a very few originals. None since cutting. Much old sheep damage 

 shown in forked and second and third leader trees. Conditions appar- 

 ently ideal for reseeding except in tops. 



Conclusions: Squirrels have destroyed seed since cutting. Chance 

 seedlings destroyed by sheep first year. Seedlings existing at time of 

 cutting will be destroyed by brush piles or heavy tops, more by merely 

 lopping heavy tops than by leaving them as they fall. By their num- 

 ber and thrifty growth, due to ideal conditions, the existing seedlings 

 survived the sheep damage, though their growth was much retarded. 

 On dry and poor site probably none would have survived. 



Plot No. 6 



Exposure : N.E. Gentle slope. 



Timber : Large mature. 



Cutting : Five large trees cut. 



Soil quality : Excellent. 



Soil moisture: Excellent. 



Ground cover: Scant grama and >mall weeds. 



Seed trees : One splendid initrnu'diate covering old stumps. 



Brush disposal : Piled. 



Grazing. C&H : Moderate. 



Grazing, S&G : None recently. 



Reproduction: Entirely lacking on old tree sites. Fairly good 6-10 

 years old on outlying well-grazed openings. 



Conclusions: No seedlings under trees at time of cutting. Old tree 

 sites in ideal condition for reseeding. Excellent seed tree in good 

 bearing. Gray squirrels responsible for lack of seedlings since cutting. 

 (Only 9 cones of a good crop escaped in 1920.) 



