II S3 



U. S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF CHEMISTRY. 

 BULLETIN No. 13. 



FOODS 



AND 



FOOD ADULTEKANTS. 



INVESTIGATIONS MADE UNDER DIRECTION OF 



Dr. H. \V. \VILJSY, CHIEF CHEMIST. 



PART FIFTH: 



BAKING POWDEES. 



BY 



C. A. CRAMPTON, ASSISTANT CHEMIST. 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE. 



WASHINGTON-. 



GOVERNMENT PRINTING OFFICE. 



1889. 



5360 pt. 5 1 



i . ji^iiy cj 

 :ITY SCHOOLS, 

 .isburg, Ind. 



