[ 7^ ]■ . 



tannoc be dlflinguilhed ; in its ftead I would ufe oxat or oxidat, 

 and inilead of oxided I would fubflitute oxidated. The appli- 

 cation of either of thefe terms to metallic fubftances in an oxi- 

 dated ftate is generally fuperfluous, as fuch fubftances are already 

 denoted and known under the name of metallic calces ; Guyton * 

 has lately proved that 'd'/OTK6«a'j are the pureft carbon, yet furely 

 even the French School will not attempt to fupprefs that well- 

 known name and exchange it for carbon. Neither, I fuppofe» 

 will they call charcoal an oxide of carbon, though proved to con- 

 tain fome portion of oxygen; and for the fame reafon I fhall 

 not exchange the well-known term plumbago for that of carburet- 

 of iron, though with refpedl to fimilar compounds of other metaia 

 rhe term carburet ftiould be employed. 



This fyftem of conciliation the French School rejeds with 

 aifdain, Guyton tells us " it is fo much more difficult to con- 

 ' ceive as it is an evident facrifice of principles to habits," § as 

 if the ground of their fyftem of nomenclature were univerfally 

 allowed, and afforded rules fo ftrid and general as to enjoy thfi 

 Angular privilege of admitting no exception ! as if there was no 

 fuch thing 2.% principles of convenience, or if there were fuch prin- 

 ciples, 



• It is with much regret and reluftance I mention this gentleman under this new- 

 name, as he was generally known and gained immortal fame under that of Morvtau; 

 Kence I fiiall (till ufe this in quoting his former works. 



§ 25. Ann. Chym. 207. 



