l54 Volta on Animal Ele&ricity, 



condu<Slors fuited to each metal, in which the fluids or con- 

 du6lors of the fccond clafs muft be ^difpofed according to 

 their ailivity. I have paid great attention to this circuni- 

 ftance, and have formed feveral tables, which I fhall publifli 

 as foon as I have brought them to perfection. 



I (hall here, however, only obferve, that in order to clafs, 

 in fome manner, the innumerable different moift conduftor& 

 of this kind, I diilinguifh them into aqueous, fpiritous, mu- 

 cous, and gelatinous, faccharine, faponaceous, fdine, acid, 

 alcaline, and fulphurous (livers of fulphur) liquids ; that 1 

 make fubdivifions in the acids down to the beft known 

 fimple mineral acids, (as I find in this refpeft great diffe- 

 rence between the nitrous and the muriatic acids,) compre- 

 hending the principal' vegetable acids and the acid of galls ; 

 and do the fame in regard to the faline fluids, according as 

 they are folutions of neutral falts, earthy falts, and particu- 

 larly metallic falts. 



When it can be determined in what order all thefe kinds 

 of fluids follow each other, in regard to the power in quef- 

 tion, for the metal A, and another for the metal B, &c., we 

 fhall then be in a condition to determine what place mufl: be 

 afligned to a groat number of other heterogeneous fluids, 

 whether mineral, vegetable, or animal, which belong to fe- 

 veral of the above claffes. In general, the order for the 

 greater part of the metals hitherto obferved is as follow*: 

 ift, pure water ; 2d, water mixed with clay or chalk, (which 

 (hews a pretty different effeft when the before-mentioned ex- 

 periment ismr.de with two glaffes, a bow of tin or zinc, and 

 a properly prepared frog, which has a fufiieient degree of vi- 

 tality) j 3d, a folution of fugar; 4th, alcohol; 5th, milk; 

 6th, mucilaginous fluids; 7th, animal gelatinous fluids; 

 8th, wine; 9th, vinegar, and other vegetable juices and 

 acids; loth, faliva; nth, mucus of the nofe; 12th, blood; 

 13th, brains; i4thj folution of fait ; 15th, foap fuds; i6th, 

 (;halk water; 17th, concentrated mineral acids; i8th, ftrong 

 a|caHnc leys ;. 19th, alcaline. fluid?; 20th, livers of fulphur. 



Withv 



