Washington, D. C. ; February, 1928 
TIMBER GROWING AND LOGGING PRACTICE 
IN THE LAKE STATES [7] 5 | 
MEASURES NECESSARY TO KER ee 
FOREST LAND PRODUCTIVE ANDTO x MAR ® 
. 
PRODUCE FULL TIMBER CROPS _ 
By 
RAPHAEL ZON, Director, Lake States Forest Experiment Station 
Introduction by 
W.B. GREELEY, Forester, Forest Service 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1928 
