Chemical and Miner alogical Nomenclature. 203. 



certainly the eminent abilities of Fourcroy, and the confum-- 

 mate (kill and fagacity of Berthollet and his affociate Welter, 

 have thrown the cleared light ; yet I mull own that the 

 terms employed bv the two laft to denote the different com- 

 pounds appear to me very perplexing, though the belt that 

 could be ohofen on the principles of the new nomenclature *. 

 I flatter myfelf, therefore, that a fliort explanation of them, 

 and of the names I would wifh to fubftitute in their room, 

 will not be unacceptable nor out of place on this occafion. 



Sulpbure, Sulfhuret of the Englijh. 

 By this the French understand the compound of fulphur 

 finglyWxth any bafes except hydrogen: thefe compounds I 

 \n\\'hepars if unmctallic, but if metallic I apply their antient 

 names. 



Hydrogene Sulphurs, Sulphurated Hydrogen. 

 This complex denomination expreffe? the union of fulphur 

 with hydrogen. I call it by its antient name, hepatic air, 



Soujf're Hydrogene. 

 This term exprefles the union of fulphur with hepatic air. 

 The fulphur abounds, and it does not form a permanent air, 

 but afliimes an oily form. Englifh neologiUs would, I pre- 

 fume, have called it by&rogenated fulphur : it is plain that 

 this name does not exprefs all the ingredients, for it is to 

 hepatic air, and not merelv to hydrogen, that the fulphur is 

 united; I call it therefore hepaticated fulphur. 



Hydro Sulphure. 

 Hepatic air is capable of uniting to various bafes, and even 

 precipitates fulphur from them if previoufly united to them ; 

 on thefe compounds Berthollet beftows the above denomina- 

 tion. The Englifh, I fuppofe, would call them hydrojulphu- 

 retf\ I call them bepatules. 



Sulpbure Hydrogene. 

 This denotes the union of hepaticated fulphur (fouffre hy- 

 drogene) with any bans : the Englifh, I fuppofe, would call 



Sec Ann. Chem. XXV. p. 230- and New R cx ' J our - IIL P- 43 6 - 

 D d % thefe 



