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THE ROYAL SOCIETY OF CANADA 



of the experiments the gas was collected in two separate holders, and 

 the two portions were then analysed separately, it will be noted that 

 the gas from the second half of the run is much richer than that col- 

 lected in the first holder. 



The tables given below summarize the more important results 

 obtained. As a general rule the results are the average of two or more 

 experiments at each temperature. 



Slow Series of Tests 



In the slow series the general method was the same as the above, 

 except that the lead bath was only heated beforehand to a temperature 

 slightly above the melting point of lead. The bath was then raised 

 slowly up and, after the retort was immersed, the temperature then 

 slowly raised to the temperature of the test. The results are given 

 in the following tables. 



Table I 



Typical Analysis of Shand Coal Employed in Tests 



