Matichestcr Memoirs^ Vol. hi. (191 2), No. 0. 9 



At 1250 the ratio of ethylene to hydrogen was in- 

 creased by pressure, but the ratio of this hydrocarbon to 

 methane diminished as would be expected from a con- 

 sideration of the volume changes. 



It was found that no saturated hydrocarbon other 

 than methane is produced or is stable under the conditions 

 of temperature and pressure employed. 



Electro-Chemical Laboratory, 

 The University, 



Manchester. 



