104 



S. HATAI 



TABLE 1 



Showing the growth in body weight of albino rats fed with Sudan III dissolved in 

 olive oil, contrasted with the control rats fed with the normal laboratory diet. In 

 series X the control rats were fed with the laboratory diet plus olive oil alone. 



Series I 28 days old at the beginning of the experiment. 

 Series II 29 days old at the beginning of the experiment. 

 Series III 33 days old at the beginning of the experiment. 

 Series VIII 27 days old at the beginning of the experiment. 

 Series X 28 days old at the beginning of the experiment. 



Riddle found that chicks do not grow well on a Sudan III diet, 

 and furthermore the Sudan chick produces defective feathers. 

 Unfortunately, Riddle does not give data concerning the body 

 growth, and thus the extent of the injurious action of Sudan III 

 in his experiments cannot be judged. As has been stated al- 

 ready, the majority of investigators fed Sudan III to the adult 

 animals. This may account for the fact that they did not notice 

 any toxic action of the Sudan. It is also possible, however, that 

 rats are more susceptible to Sudan III than either rabbits or 

 guinea-pigs. This point needs to be further investigated. 



Since the test rats in the earlier series received Sudan III 

 mixed with olive oil, while the control rats did not get any oil 



