100 



BRIDGMAN. 



With the use of the purer sample the minute irregularities in the 

 transition, which had given rise to the suspicion that there might be 

 another modification, disappeared, but still other very minute con- 

 sistent irregulaiities remained which leave me uneasily suspicious that 



3 4 5 6 7 8 9 

 Pressure, kgm./cm.^ x 10^ 

 Acetamide 



Figure 5. Acetamide. The observed changes of volume. 



30 

 25 



E 



a 



20 



15 



glO 



be 

 ^ 5 





0123456789 

 Pressure, kgm./cm.^ x 10^ 

 Acetamide 



10 



Figure 6. Acetamide. The calculated latent heats and the changes of 

 internal energy. 



somewhere below 75° the transition line may perhaps split into two 

 inclined at a very slight angle. It would be very difficult to verify 

 this suspicion, however, because of the increasing sluggishness of the 



