154 COAL-TAR COLORS USED IN FOOD PRODUCTS. 



II. Those colors which in some cases produced no effect, and i 

 others produced effects, are as follows: 



4. Naphthol Yellow S: 



395 grains produced diarrhea and no albuminuria. 

 292 grains produced albuminuria. 



116 grains for 25 days produced no effect. 



25 grains for 2 weeks, on alternate days, produced no effect. 

 8 and 9. Fast Yellow Y and R: 



173 grains for 3 weeks produced no effect. 



53 grains produced albuminuria. 

 55. Ponceau 2 R. 



582 grains killed. 



198 grains produced no effect. 

 65. Fast Red B: 



143 grains for 145 days produced no effect. 



137 grains for 145 days produced no effect. 



98 grains for 145 days produced no effect. 



68 grains produced albuminuria. 



38 grains produced albuminuria. 

 103. Azorubin S: 



143 grains for 145 days produced no effect. 



137 grains for 145 days produced no effect. 



98 grains for 145 days produced no effect. 



70 grains produced diarrhea. 

 287. AzoBlue: 



233 grains produced no effect. 



166 grains produced albuminuria. 



III. Those that produced only a slight disturbance which wi 

 regarded as negligible: 



28. Archil Substitute V: 



301 grains produced vomiting and albuminuria. 



127 grains produced vomiting and albuminuria. 

 105. Fast Red E: 



70 grains produced diarrhea. 

 166. Wool Black: 



117 grains produced albuminuria. 

 240. Congo Red: 



192 grains produced albuminuria. 

 269. Chrysamin R: 



433 grains produced albuminuria. 



361 grains produced albuminuria. 

 394. Dinitrosoresorcin: 



139 grains produced loss of appetite. 



121 grains produced albuminuria. 



From Class I above it would appear 



(a) That if a dose of 113 grains per 100 pounds body weight pr< 

 duced no effect it is to be classed as harmless. 



From Class II above it would appear 



(a) That if albuminuria is caused by as little as 38 grams in son 

 cases, and no effect is produced by doses as large as 143 grams, tl 

 ^olor is to be classed as harmless. 



