Issued January 13, 1912. 



U. S. DEPARTMENT 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 Experiment Station. 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1912 



