SEP - 7 1914 



Division of Forestry- 

 University of California 



Y. B. Separate 542. 



INJURIES TO FORESTS AND FOREST PRODUCTS 

 BY ROUNDHEADED BORERS. 



By 



J. L. WEBB, 



Agent and Expert, Forest Insect Investigations, Bureau of Entomology. 



[FROM YEARBOOK OF DEPARTMENT OF AGRICULTURE FOR 1910.] 



97236 11 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1911 



I 



