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XXX. Notice of Experiments made by the Galvanic Society 

 of Paris on the Discovery announced Inj M. Pacchiani 

 of the Composition of the Muriatic ylcid '■■'■. 



As soon as the Galvanic Society was informed that M. Pac- 

 chiani announced that he had obtained muriatic acid by taking 

 from water a part of its oxvtren, the society's first care was di- 

 rected to endeavour, as well by means of electricity as of Gal- 

 vanism, to confirm this discovery so important to science. 



M. Pacchiani having solely employed the Galvanic pile, 

 the members determined to employ in their experiments 

 the same agent, in that manner which appeared to them the 

 most convenient and proper; and, above all, which might 

 give results the least susceptible of objections. 



First Experiment . 



They took a piece of new glass tube of O'OSl parts of a 

 meter in length, and 0*009 parts of a meter of interior dia- 

 meter. Oue of the ends of this tube was closed by the lampj 

 TO the other a capillary tube was joined (by fusion), bent so 

 as to come under a bell glass. At the upper part of this 

 tube, and at an equal distance from the junction of the ca- 

 pillary tube, two holes were punctured at the lamp through 

 the solid glass, by means of which apertures there were in- 

 serted into the interior of the tube, at a very little distance 

 from its lower extremity, two bits of gold wire of the stand- 

 ard 0*f)76 purity, and about 0-0005 parts of a meter in dia- 

 meter, disposed so as not to touch each other, and not to 

 bear against the inside of the tube. These openings were 

 afterwards closed by the lamp. The tube and its capillary 

 addition was filled with pure distilled water. The whole was 

 . fixed with bees' wax upon a piece of glass placed upon the 

 middle of a horizontal Galvanic pile of 32 pairs of square 

 plates of 0-IOS parts of a meter each side. These plates 

 were separated by bits of leather, the interstices among which 

 were filled up with very pure sand moistened with a solution 

 of muriate of soda. The capillary tube beijig plunged in a 



* Ircm Amides dc Chimic, tome Ivi. 



tub 



