500 DOMAIN V. CALCAREOUS. 



of art and utility, else the sapphire and the ruby 

 might be confounded with corindon. It may 

 seem particularly doubtful whether the kind 

 called anydrous by the French mineralogists, 

 because it contains no water of crystallisation, 

 can properly be regarded as a sinter, or depo- 

 sition from other beds \ particularly that of Vul- 

 pino, which contains silex, and has been quar- 

 ried for many ages. If gypsous alabaster form 

 beds, which alternate with orsten and limestone, 

 it cannot be regarded as the mere production of 

 other rocks. 



Mr. Jameson, who deserves to be mentioned 

 ivith respect, upon account of his assiduous ser- 

 vices to mineralogy, in treating compact gyp- 

 sum, observes, that " it occurs almost always 

 ash grey, passing into smoke grey, also yellow- 

 ish grey;" and closes thus, " It is employed in 

 architecture and sculpture, under the name ala- 

 baster." Nothing surely can be more contra- 

 dictory to the common sense of mankind, except 

 Mr. Werner's new and elegant appellation of 

 White-stone, thus introduced to his audience by 

 a German Professor, " White-stone is always 

 grey." The ingenious and intelligent Brard, 

 though a mere youth, gives a more rational ac- 

 count. 

 amount " Gypsous alabaster does not effervesce in 



