Issued April 3, 1911. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF CHEMISTRY BULLETIN No. 135. 



H. W. WILEY, Chief of Bureau. 



COMMERCIAL TURPENTINES: 



THEIR QUALITY AND METHODS 

 FOR THEIR EXAMINATION. 



BY 



F. P. VEITCH, 



Chief, Leather and Paper Laboratory, 



AND 



M. G. DONK, 



Assistant Chemist. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1911. 



