UNITED STATES DEPARTMENT OF AGRICULTURE | 
BULLETIN No. 820 
. Contribution from the Forest Service 
HENRY 8S. GRAVES, Forester 
Washington, D. C. May 22, 1920 
JACK PINE 
By 
WILLIAM DENT STERRETT, Forest Examiner 
Pnteoduction se e e e a e 2 sa 2 
Distinguishing Characteristies . Supply of Jack Pine Timber 
ROREG Ss SS We oe. oes Characterisiies of the Woed 
Forest Types... .. 22 Utilization. .. 
Soll, Moisture, aad Light Requirements Stampage Valucs 
Formand Development. . .... . 
Reprodustion . 1. 5s 0 2 2s se a 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1920 
