72 



Kansas Academy of Science. 



So far as the writer is aware, such a wide variation in com- 

 position and heating value is not found in the other natural-gas 

 fields, and it has been a rather common practice to consider 

 natural gases, with a few unimportant exceptions, to be of 

 about the same composition and heating value. 



The economic problem involved in the sale of these gases is 

 a very material one, since some of these gases of low heating 

 value are found in considerable quantities and the lower ones 

 are practically valueless as fuels. While no effort is being 

 made to sell the gas from the shallow Augusta or Dexter fields, 

 gases of all the other grades listed above are being sold. The 

 loss to the consumer in heat units, and consequently in money, 

 from the use of a 500 B. t. u. gas amounts to 50 per cent when 

 compared to the present gas supplied to Lawrence as a 

 standard. 



The following are typical analyses of gas from wells located 

 in various parts of the midcontinental field : 



* Analyses by Mr. E. E. I^yder. 



