U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF CHEMISTRY BULLETIN No. 100. 



II. \\. \YII.KY. Chief. 



SOME FORMS OF FOOD ADULTERATION 



AND 



SIMPLE METHODS FOR THEIR DETECTION. 



BY 



W. D. BIGELOW, 



Chief, Division of Foods, 

 AND 



BURTON J. HOWARD, 



Chief, Microchemical Laboratory. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1906. 



