442 Mr. Aikin on With er it e found in Shropshire. 



was then added, the crystals were redissolved, and carbonate of 

 ammonia was poured in till it occasioned no further precipitate. 

 The carbonate of strontites thus obtained weighed on ignition 

 2.2 gr. and being redissolved in muriatic acid and mixed with 

 alcohol communicated to the flame of this last the red colour cha- 

 racteristic of strontites. 



The muriate of barytes was in like manner decomposed at a 

 boiling heat by carbonate of ammonia, and the carbonate of barytes 

 thus obtained weighed, after edulcoration and ignition, 192.6 gr. 

 Hence 100 parts of this witherite contain 



96.3 carbonate of barytes 



1.1 of strontites 



0.9 sulphate of barytes 



0.5 silex 



0.25 alumine and oxide of iron 



99.05 

 0.95 loss 



