H2 Chemico- Galvanic Olservations, 



(( 1 1 . If all the chemical phenomena indicated and obt 

 tained from the Galvanic action may be also manifested by 

 the influence of electrical currents produced by common 

 machines ; since the electric fluid does not appear to differ 

 essentially from the Galvanic, although the contrary has 

 been asserted. 



M 12. If the formation of an alkali by the contact of water 

 with a single metal comes also from Galvanism, why is this 

 alkali not soda ? If it is that of ammonia, as there is reason 

 to believe, how can this alkali be produced in the midst of 

 a strong agitation and in distilled water, which contains no 

 sensible quantity of azote ? 



" 13. Why gold, platina, iron, and the black oxide of 

 manganese, when positively galvanized in water, form mu- 

 riatic acid, in contradiction to the other metals hitherto sub- 

 mitted to the same process. 



<( 14. If the metals or the metallic oxides, which produce 

 the muriatic acid by Galvanism, always liberate oxygen gas, 

 (except iron alone, which is oxidated on this occasion,) why 

 is muriatic acid not obtained with the other metals also 

 which are oxidated in water, as well as iron, when positively 

 galvanized in this liquid ? Why can we not produce muri- 

 atic acid in water by means of iron and zinc, metals which 

 take its oxygen from it even in the cold, and, without the 

 assistance of any known electrometer apparatus, which are 

 even oxidated themselves ? and why is an alkali rather pro- 

 duced in this case ? 



'.' The Galvanic experiments upon which I am at present 

 occupied, have for their object to resolve some of the ques- 

 tions I have now announced, and will form the subject of 

 future publications," 



XXIII. Ac- 



