A 



JOURNAL. 



OF 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND 



THE ARTS. 



AUGUST, 1310. 



ARTICLE I. 



Analysis of the Cahanic Pile. By J. A. De Luc, Esq* 

 F.ILS* 



Pa&t IL 



JL Concluded the first part of this Analysis by an experi* pile separate 

 ment, in which a pile of 76 group of zinc and silver, the by writing pa- 

 number used in my preceding- experiments, separated by 

 pieces of writing paper substituted for the %vet doth, though 

 giving very sensible electric signs at its extremities, produced 

 no chemical effects in the water of the usual glass tubes ap- 

 plied to it, nor the shock* 



This experiment was made during my investigation re- Difference be- 

 specting the causes of the two distinct effects of the pile, tweentheelec- 

 uaniely electric and chemical, which by the foregoing expe- ca i e ff ec t 3 of 

 riments had been proved to be different - r the former de* the pile. 

 pending only on the binary groups of the metals, separated 

 by the best conducting substance nonmetallic, and thus not 

 necessarily productive of chemical effects; these requiring 

 absolutely, that the interposed nonmetallic substance be wet\ 

 a circumstance from which the chemical effects depend on 



Vol. XXVI. No. 119— Au«. 1810. R. groups 



