JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND 



THE ARTS. 



MARCH 1798, 



ARTICLE I. 



Otfervatlons tn Stnniian, By Citizen Pelletier. Read to the Nalionai IitJUtule 



30/^ April, 1796. 



[Concluded from p. 22Z.] 



Habitudes of the Carbonates of Barytes and Strontian, 



With muriatic acid. 1 DISSOLVED loo grains of native carbonate of barytes in mu- 

 riatic acid, and obtained 22 grains of carbonic acid gas. The folutlon being evaporated 

 afforded cryftals ia the form of (hort flattened prifms, or hexagonal plates, the weight of 

 which was 138 grains. I alfo diflblved in the fame acid 100 grains of carbonate of barytes, 

 obtained by the decompofition of barytic fulphate : the difengagement of carbonic acid gas 

 alfo amounted to 22 grains, and the muriate cryftailized lite the preceding, fo tliat there 

 was not any difference in their appearance *. 



It 



'^ The fuccefs which Dr. Crawford m«t wlih in the internal ufe of muriate of barytes, itt the treatment of 

 fcrojihulous direnfce, begins to be known in France; and iivcral pliyficians already prcfcribe tliis new medicine. 

 Ai, however, it is very aflivc, and fomctimtt even dangerous, it cannot be too ftrongly recommended that it ba 

 jiven at firft only in a very fniall dofc, and that the cffcfts which it may produce during its adminiftration be 

 accurately oblcrvcd. The Society of Health is at prefcnt engaged in a general work, in wliich it is intended to 

 determine what advantages medicine may derive from tlie ufe of muriate of barytes. They have alfo appointed 

 commiflarics to obfcrve its cfftfls in the treatment of hotfos j and Cit. Hufard and Biron, who arc intruded 

 with thcfe latter experiments, have already given both the muriate and carbonate of baryitstohorfcs feiied with 

 the frcy [farcin]. Both thefo medicines given tu dilTercnt horfei in the ijuaniity of two ciraehms a day fetm- 

 ed for a while 10 have etTcflcd a pcrfcft cure : they were even confidcrcit ai cured iit the end of a fortnight ; 



Vol. I,— March 1793, 3Y when 



