91 



REPORTS ON THE STATE OF SCIENCE. 



DIAGRAM II.— Fig. 3. 



— dxjdt curves in 50 per cent, acetic acid. 



I. = C 6 H 5 .NClAc + HC1. II. =^-C1C 6 H,.NC1Ac + IIC1. 

 III. = C 6 H 5 NHAc +2>-C1C 6 H,.NC1Ac + HC1. 



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a, 



a 

 o 



o 



I 0010 



a 

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a 



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c 



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I 



§ 0015 



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 a 



§ 

 1 



I 



§ 0020 



o 



0025 



6 6 



Time in hours. 



10 



12 



14 



