PHYSIOLOGICAL ACTION OF AMIDOSULPIIOXIC ACID. 491 







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These results demonstrate again the noxious effects of the 

 amidosulphonic acid, but how the differences in poisonous intensity 

 are to be accounted for, I am unable to say. Perhaps the calcium 

 salt of that acid penetrates more easily into the embryo of one 

 kind than into those of the other. Thus it might also be explained 

 why seeds of buckwheat and sunflowers were not damaged at all 

 by the same treatment as killed all the soya germs completely 

 (sec table). 



V. Experiments with Yeast. 



It appeared to me of some interest to see whether the amido- 

 sulphonic acid would also show a noxious influence upon yeast. 



For this purpose, I distributed 10 cc. of thick beer yeast in 

 distilled water and diluted the mixture to 100 cc. After well 

 shaking, I took 10 cc. of the mixture immediately after shaking 

 and added 90 cc. of a glucose solution containing 6.856 grams 

 pure glucose, o. 1 gram magnesium sulphate, 0.2 gram dihydro- 

 potassium phosphate, and o. 1 gram, sodium amidosulphonate, A. 



In the control case instead of the last, ammonium sulphate 

 was used, B. 



