Issued September 20, 1911. 



U. S. DEPARTMENT OF AGRICULTURE, 



FOREST SERVICE BULLETIN 75. 



HENRY S. GRAVES, Forester. 



CALIFORNIA TANBARK OAK. 



PART I. Tanbark Oak and the Tanning Industry. 



By WILLIS LINN JEPSON, Collaborator. 



t* 

 PART II. Utilization of the Wood of Tanbark Oak. 



By H. S. BETTS, Engineer in Timber Testa, . ( 



APPENDIX. Distribution of Tannin in Tanbark Ok*. : ' 



By C. D. MELL, Assistant Dendrologist;' * / : 



SEC 



OCT 29 1914 



Division of Forestry 

 University of California 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1911. 



