4:42 W. G. Mixter — Carbon and its Heat of Combustion. 



The calorimeter used in this second series of experiments is 

 shown in the figure. The bomb was silver plated and lined 

 with pure silver a millimeter in thickness. The water equiva- 

 lent of the calorimeter is less than one-tenth of the water it 

 contained. Thermometer No. 1, described in the paper on 

 hydrogen (loc. cit.) was used. 



Experiment 1. — 



Observed weight of carbon . 



Air condensed on " 



Reduction for weight in vacuum 



J -5057 gram 

 0-0017 " 

 0*0008 " 



1-5048 



Corrected weight — 



Observed weight of water 3255*5 grams 



Reduction for weight in vacuum 3*2 " 



Water equivalent of oxygen and car- 

 bon dioxide 1*7 u 



Water equivalent of calorimeter 286*6 " 



Water and water equivalent 3547 



Oxygen 9*7 " 



Iron wire to ignite the carbon 44 milligrams 



Silver dissolved by HN0 3 formed 38 " 



