Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/452

 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 characteristic 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