)<M-<-Milirr28, 1907. 



U. S. DEPARTMENT OE AGRICULTURE, 



BUREAU OF CHEMISTRY BULLETIN No. 84, PART III. 



H. W. \V1LKV, CHIKF OK I'.l'RKAr. 



INFLUENCE OF FOOD PRESERVATIVES AND ARTIFICIAL 

 COLORS ON DIGESTION AND HEALTH. 



III. -SULPHUROUS ACID AND SULPHITES. 



BY H, W, WILEY, M, I),, 



WITH THE COLLABORATION OF W. I). BIGELOW, P. G. WEBER. AND OTHERS. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1907. 



