( 184 ) 



I sliall not carry out the intricate calculations, wliiclt would be 

 necessary to calculate Ac from Mr. Kuenen's observations of the 

 increase of pressures, but I shall restrict myself to an approxi- 

 mation, sufficient to conclude that the different values of Lv in 

 Mr. Kuenen's experiments must have been quantities of the same 

 order. 



From 



follows 



MRT 



V — b 



and 



dp a (a~2b MRT) 

 — MRT ^ = »"- ^ '- 



dv 



by approximation. 



bo we can calculate the quantity Au irom Ay = 



Variation of pressure in mixinc). 



If we take ?'= 403° and ce = V4, as an example from Mr. Kuenen's 

 table, which I have reproduced here, we find at 



