VOLTAIC BATTERY. 273 



substances possessing the lowest chemical powers 

 in voltaic arrangements, if a sufficient number 

 of well insulated pairs only be employed ; which 

 he has also beautifully illustrated by a water 

 battery of 3500 pairs. 



So it is shown, by the following experiments, 

 that a chemical substance of the highest powers 

 of affinity, will develope, by a very few pairs, 

 the same phenomena. 



An attempt was now made to construct twelve 

 pairs of plates of the description aforementioned. 

 By means of glass pillars, and an appropriate frame 

 work of wood, each pair was kept insulated from 

 the other, and twelve wine glasses formed the 

 jars for this beautiful little battery. The whole 

 being completed, an attempt was made to produce 

 the deflexion of gold leaf. A micrometer screw 

 was arranged, so as to cause a copper disc to 

 recede or approach the lower extremity of a 

 suspended slip of gold leaf, and on connecting 

 the poles of the battery with the same, a deflection 

 was readily produced of above 1-lOth of an inch, 

 with twelve pairs. The solution of Sulphate of 

 Copper was here employed unacidulated. 

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