34 



Miscellaneous Notices on Galvanic Results. 



negative the positive. The results were still the same. The 

 positive became in all cases heated, from its end to the point of 

 crossing, nor could any coaxing, if I may use the term, produce 

 the same effects in the other, even though the portion beyond the 

 spot where the wires crossed was reduced to the smallest amount. 

 The heat in the end of the positive wire P was so great, that it 

 bent beneath its own weight." (See fig. 4, p. 33.) 



" With the battery of one hundred and sixty cells, the arrange- 

 ment not in series is^ve-fold more efficacious than that in series, 

 when the electrolyte is acidulated water, and the arrangement in 

 series is ten-fold more powerful than that not in series if the elec- 

 trolyte be distilled water." 



" We were now induced to repeat that interesting experiment 

 wherein the end of the positive wire became heated to redness, 

 with the following variations : — The wires were crossed as be- 

 fore, and their ends placed into two separate small jars, a, b, (Fig. 

 5,) containing distilled water, at the temperature of 58°. In five 

 minutes the temperature of the cell b, containing the negative 

 wire, rose to 61°, being 3°, — that of the positive cell a to 64°, 

 being 6°. 



" They were then similarly placed into two small glass vessels 

 of distilled water ; in about two minutes the water in the cell 

 containing the positive wire boiled, that in the other presenting 

 no such appearance. 



" When two drops of water were placed on a piece of glass, 

 and the wires touching the water, that at the positive, as might 



be anticipated, evaporated instantly. 



Fig. 6. 

 Fis. 5. 



" In concluding this account, I have to describe a peculiar phe- 

 nomenon of a most interesting character, observed by causing a 

 portion of a magnet to form part of the circuit. The other mag- 

 netic effects, which shewed the electric flame, obedient to the 

 same laws governing a wire through which the electricity passes, 



