Chemical and Physical Papers. 81 



with the quantity of helium and of nitrogen. A gas high in he- 

 lium is low in methane and other combustibles, and high in nitro- 

 gen, while the gas low in helium is high in combustibles and low in 

 nitrogen — a much better gas for heat production. The economic 

 significance of these facts cannot be discussed here, but they have 

 a very important bearing upon the use of the gases for domestic 

 and industrial purposes. 



If the lines of equal helium content be compared with the lines 

 of outcropping of the various successive geological strata across the 

 eastern part of the state, a marked similarity is at once noted. 



The lines follow almost the same course and indicate a connec- 

 tion between geological structure and distribution of the helium. 

 This relationship will be further inquired into as time permits. 



Kansas is to be congratulated on the possession of an unlimited 

 and easily available supply of what has been considered a very rare 

 element, a supply which has never been suspected before. It as- 

 sures the fact that helium is no longer a rare element, but a very 

 common element, existing in goodly quantity for the uses which 

 are yet to be found for it. 



