Issued June 7, 1001*. 



U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF CHEMISTRY BULLETIN No. 122. 



H. W. WILEY, Chief of Bureau. 



PROCEEDINGS 



OF THE 



TWKXTY-FIFTH 



OF THK 



.\Nsnri.\TiiiN OF OFFICIAL AGRICULTURAL CHEMISTS, 



WASHINGTON. H. I ., XOVKMKKR I'M 6, 1908. 



I MITKU BY 



1IAKVKV W. WILEY, 



>1 ( KETAKY OF THE ASSOCIATION. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1909. 



