GALVANIC EXPERIMENTS WITH ICE. 303 



XVII. 



Galvanic Experiments with Ice, and a Method of rendering the 

 EleBric Atiradion of the Pile very evident. By S. P. 

 Bo u V I E R , (f Jodoigne, Member of the Society of Emulation, 

 of Natural Hijiory and Phyfics, at Brujfds *. 



1 AVAILED myfelf of the firft frofts this year to make fome 

 experiments on ice, both as an interpofed fubftance, and as 

 an exciter and conduflor. 



Experiment 1 . A pile was formed of eighty pairs of plates of A pile of 80 

 zinc and lilver, and as many very thin dilks of ice. It not [y "^'inTiks of 

 only did not give the flighteft (hock, but did not excite the ke, produced n« 

 leaft tafle on the tongue, or produce the finaileft luminous ^"^"* 

 effeft. I left it (landing for feveral hours, but found no ditTer- 

 ence in the refult. 



Exp. 2. I arranged ninety di(ks of ice in pairs with as many A pile of 90 

 crown pieces, and placed between the pairs pieces of pafte- P^"^^ cf jceand 

 board impregnated with a folution of fait. This combination pafteboard inter- 

 produced no more e(fe6l than the preceding. pofed, had no 



Exp. 3. The fame number of ditks of ice were paired with ice^vvith zinc 

 as many of zinc, and wet pafteboards interpofed as before, with was equally in- 



the fame refult. 



afti 



vc. 



Exp, 4. I made a pile of a hundred and twenty-eight pairs 128 palrsof zi»c 



of zinc and (ilver, interpoting pafteboard impregnated with a ^"^ j I^^*^' ^'^^*' 



faline folution. This pile gave fuch ftrong (hocks, that they pafteboard, gave 



extended to the (boulders with violence. On forming the circle ?*;""S fliocks 



n I ' M . . t I 1 1 • t 1' 1 • r ' ,, felt in the flioul- 



or this pile with the hands armed with httle pieces ot ice, all ders j but if 



the power of giving a (hock was intercepted. I then took a touched with ^ 



piece of ice in my mouth, and brought it into contact with the the hand no-' 



fummit of the pile, while with my hand I touched its bafe ; thing was felt. 



but no tafte was perceived on my tongue. ^j^^?" ^^^l^^^^ 



The thaw prevented my purfuing this inquiry any farther, when the com- 



Jf the froft return, I will pair di(ks of filver with caft di(ks of "^"f'"'.''!^.^*'« 

 ^ made with ice. 



muriate of lime, of pure potafli, and of fulphur of potafti. Farther experi- 

 in order to produce in the firft two cafes an adion of phy(ical "|5"^^ propofed 

 folution, and in the iaft a chemical adion, after the manner of lime, pure pot- 

 Davy, 3^> 2nd fulphu- 



ret of potaih. 



* Journal de Chimie, par Van Mods, for January 1803, No. XL 

 p. 52. 



£xp. 



