PRINCIPLES 



OF 



AMERICAN FORESTRY. 



SAMUEL B. GREEN, 



Late Professor of Horticulture and Forestry, University of Minnesota , 



Member of the Forest Reserve Board of the State of 



Minnesota; A uthor of ' ' Forestry in Minnesota.''^ 



FIRST EDITION. 



SIXTH THOUSAND. 



NEW YORK : 



JOHN WILEY & SONS. 

 LONDON: CHAPMAN & HALL, LIMITED. 



1913 



