Fsreign Piibl'icatiotis, 



33S 



•j,* THE correfpondent who defires an explanation whence the fulphate of pot-afli men- 

 tioned in the laft paragraph of page 218, was derived, is reminded, tliat this fak is the molt 

 abundant impurity in the common vegetable alkali. Kirwan, in the Iri(h Memou's for 

 17S9, flates its amount in Dantzick pearl-afli at 505 grains in the pound troy, which is 

 upwards of one feventh of the weight of the pure alkali. As Profeifor Siegling made his 

 liquor of flints by the ordinary procefj, it is not to be fuppofedthat his alkali had undergone 

 any very laborious purification. 



PUBLICATIONS on GALVANISM. 



-L H E celebrated x-^ldini, Profeflbr of Natural Philofophy at Bologna, has forwarded to the 

 firft clafs of the National Inilitute a colleftion of works publilhed in Italy, fince the difco- 

 very made by Galvani, of the irritation produced in animal matters by the metalsj and 

 which treat on that fubjeifl. 'J'hefe works having been hitherto little circulated, Citizea 

 Guyton, from whofe annonce in the 22d volume of tlie Annals of Chemiflry, page 323, 

 this extraft is taken, naturally concluded that the lift would be acceptable to the world. 

 The paper of Mr. Humboldt, of which I have given a tranflation * ; another memoir by 

 the fame author, on the chemical procefs of vitality, together with certain truly philofophi- 

 cal remarks upon the fame by Citizen Fourcroy, all which are inferted in the 22d volume 

 of the fame Annals, have fliewn the great importance of a phenomenon which has engaged 

 the attention of all Europe. The firft clafs of the Inftitute of France has confidered this 

 as an objedl moft worthy of inveftigation, and has for that purpofe nominated a commiffion 

 of feven members, who for five months paft have been engaged in experiments proper to 

 determine the circumftances, and develop its nature. 



The following is the lift. The annexed remarks are made by Citizen Guyton. 



Aloyfii Galvani in Bononienfi ArchigymnaCo Profeflbris, etc. de Viribus Eledricitatia 

 in Motu mufculari, Commentarius. Cum Joan. Aldini Diflertatione et Notis, Mutinse 

 1792. Small folio, 80 pages, with three engraved plates. 

 This work contains a letter of Baflani CarmineC, which exhibits the opinion of Volta ■ 



concerning the feat of animal cledlricity. 



Joannis Aldini de Animah Ele6lricitate Differtationes du:6. BononiK, 1794. Small 

 folio, 41 pages, with figures. 



Deir Ufo e dell' Attivita dell' Arco Condudorc nelle Contrazioni dei Mufcoli. In Bo- 

 logna, 1794. Small quarto, j68 pages. With a Supplement of 23 pages. 



Mcmoria intorno all' Eledlricita Animale, del SIg. Dott. Gio. Aldini, Prof, di FiGca nell* 

 Univerfita di Bologna, etc. 10 June, 1794. In quarto, 12 pages. 



, ;'• Philof. Journ. I. 256. 



Fiimal 



