REPRODUCTION OF WESTERN YELLOW PINE. 



103 



ESTABLISHMENT OF SEEDLINGS IN BRUSH AND NO BRUSH. 



It has remained for studies conducted in 1920 to explain the 

 differences betwen the results obtained in the 1908 experiment and 



Depth Z-3 inches 









^W 









V7 









1 

 % 



V \ 





xx 







v. 





















N& 



















Depth 6 inches 



Prtclpiration(inches) 









LEC 

 NO DruSh 

 Between bra 

 Under 

 Pre.ci pi+at'u 



;end 







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riches — — 







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« 

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• 



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• 

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• 



• 



• 

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• 

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_••" 



N./ 



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MAV 



JUNE 



JULY 



August 



SEPTEMBER 



Fig. 13. — Available soil moisture, brush experiment, Fort Valley, 1919. 



the 1914 experiment, and, in fact, to clear up the whole problem. 

 The extraordinary seedling crop of 1919 provided unequaled oppor- 

 tunities for this investigation by furnishing abundant material 



