Manchester Memoirs, Vol. Ix. (1916), No. 11. ^ 



1. Supersaturation of the electrode surface with non- 

 electrified gas under very high pressure, due to the 

 permeability of the metal to the ionised gas, but non- 

 permeability to the molecular, and also to the spontaneous 

 decomposition of the alloys containing the same gas. 



2. Formation of a series of alloys or solid solutions of 

 gas (or gas + electrode - material compound) with the 

 electrode surface. 



3. Deficiency or excess of non-hydrated ions, charged 

 and discharged, in the immediate neighbourhood of the 

 electrodes. 



4. Inductive action of the escaping ionised gas on the 

 electrode. 



Electro-Chemical Laboratories, 

 Manchester University. 



REFERENCES. 



Le Blanc. " Die Elek. Krafte der Polarisation " Knapp, 

 Halle, 1910 — Trans. Faraday Soc, 1914, 9, 251. — 

 Zeit. Phys. Chem., 5, 469 (1890). 



Bose. Zeit. Phys. Chem., 34, 701 (1900). 



Caspari. Zeit. Phys. Chem., 30, 89 (1899). 



Coehn and Dannenberg. Zeit. Phys. Chem., 38, 618 (190 1). 



Crabtree. Jour. Chim. Phys., 12, 493 (1914). 



Foerster. Zeit. Elektrochem., 1 6, 353 (1910). 



