274 DR. FARADAY'S EXPERIMENTAL RESEARCHES IN ELECTRICITY. 



as not to allow one fifteenth of the transferable force to pass which would have cir 

 culated without it. Thus fourteen fifteenths of the available force of the battery were 

 destroyed, being converted into local force, (which was rendered evident by the evo- 

 lution of gas from the zincs,) and yet the platina electrodes in the water were three 

 inches long, nearly an inch wide, and not a quarter of an inch apart. 



1160. These points, i. e. the increase of conducting power, the enlargement of the 

 electrodes, and their approximation, should be especially attended to in volta-electro- 

 meters. The principles upon which their utility depend are so evident that there can 

 be no occasion for further development of them here. 



Royal Institution, 

 October n, 1834, 



