Issued January It], 1912. 



U. S. DEPAr^T:MEXT OF AGRICULTURE, 



FOREST SERVICE— Circular 196. 



HENRY S. GRAVES, Forester. 



THE INFLUENCE OF AGE AND CONDITION OF 



THE TREE UPON SEED PRODUCTION 



IN WESTERN YELLOW PINE. 



BY 



G. A. PEARSON, 



In Charge, Fort Valley Ezperiment Station. 



WASHINGTON : GOVERMMENT PRINTING OFFICE : 1912 



