Ka)isa>i Academij of Science. 185 



ANALYSIS AND COMPARATIVE HEATING VALUES OF 

 NATURAL GAS AND COALS. 



H. C. Allen. 



IN VIEW of the recent publicity given the natural-gas ques- 

 tion in this part of the country, the following data, pre- 

 pared for the Public Utilities Commission of Kansas and used 

 with their consent, is believed to be of considerable general 

 interest. The coals given are typical of those sold in the terri- 

 tory supplied with natural gas, and the samples used were 

 fairly representative, with the exception of the Leavenworth 

 sample, which was rather more of a selected sample. The mat- 

 ter of efficiency, cleanliness, convenience, and all personal 

 factors are not taken into account in the figures given, only the 

 actual total number of heat units obtained being considered. 

 The prices per ton given for the coals are those that prevailed 

 in Lawrence at the time the tests were made. 



