Bulletin No. 22. 



U. S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF FORESTRY. 



THE WHITE PINE 



(PINUS STROBUS Linneeus.) 



V. U. SPALDING, 



Professor of Botany in the University of Ivlichigan. 



REVISED AND ENLARGED BY 



B. E. FERNOW, 



CInief of tl^e Division of Forestry. 



"WITH CONTRIBUTIONS: 



INSECT ENEMIES OF THE WHITE PINE . . By F. H. CHITTENDEN, Division of Entomology. 

 THE WOOD OF THE WHITE PINE By FILIBERT ROTH, Division of Forestry. 



WASHINGTON : 



GOVERNMENT PRINTING OFFICE. 

 1899. 



