SPECIFIC HEAT OF AMMONIA. 



383 



5. Mass of Ammonia. See Part IV, Sec. 8. 



1. 3 April 1916. 8:20 P.M. 



Apparent ^Nlass of Container Empty 



Temperature in Balance Case 



Barometer 



Temperature of Barometer 



2. 3 April 1916. 9:08 P.M. 



Apparent ]Mass of Container Empty 



Temperature in Balance Case 



Barometer 



Temperature of Barometer 



3. 3 April 1916. 



Apparent Mass of Container Empty 



Temperature in Balance Case 



Barometer 



Temperature of Barometer 



10:50 P. M. 



1163. 6746 grams. 

 20.4 °C. 

 29.431 inches. 

 68.0 °F. 



1163.6741 grams. 

 19.8 °C. 

 29.412 inches. 

 67.0 °F. 



1163. 6720 grams. 

 18.7°C. 

 29.400 inches. 

 65.0 °F. 



Inside volume of container (see Part V, Sec. 6) 



approx. 273 cc. 



Volume of steel of container, approx. 149 cc. 



Weights, brass; small weights, quartz. 



Fortin Barometer, brass scale; instrumental correction + 0.023 in. 

 Reduction to Vacuo: 



1164.0094 grams. 



1164.0097 grams. 



1164.0088 grams. 

 Average 1164.0093 = True Mass of Container Empty. 



1. 

 2. 



3. 



1. 4 April 1916. 9:10 P.M. 



Apparent ]Mass of Container Filled with NH3 1266 . 3938 grams. 



Temperature in Balance Case 21 . 2 °C. 



Barometer 29 . 530 inches. 



Temperature of Barometer 71 . °F. 



2. 4 April 1916. 10:15 P.M. 



Apparent Mass of Container Filled with NH3 



Temperature in Balance Case 



Barometer 



Temperature of Barometer 



1266.3918 grams. 

 21.2 °C. 

 29 . 576 inches. 

 70.5 °F. 



