94 A SYSTEM OF 



SECT. LXXXVL 



I. Loofe and friable boles, or thofe which fail 

 to a powder in water. 

 a. Flefh-coloured bole, from Kriftiersberg, 



at Nya Kopparberg, in Weftmanland, 

 k Red. 



i. Fine, Bolus Armcnus. 



2. Coarfe, Bolus communis officinalis, from 

 the fand-ftone quarries at Orfa, in the 

 province of Dalarne. 



3. Hard, Terra rubrica. 



c. Green, Terre verte. 



1. Fine, from Italy. 



2. Coarfe, from Stenflorp, in the province 

 of Weftergottland. 



d. Bluifh grey, from Stollberget, in Koppar- 

 bergflan, in Sweden. 



Is ductile as long as it is in the rock, 

 but even then repels the water ; it con- 

 tains forty per cent, of iron ; which me- 

 tal being melted out of it in a clofe vef- 

 fel, the iron cryflallifes on its furface. 

 £ Grey. 



1. Cryftallifed in a fpherical polygonal 

 figure : from Swappawari, in Lap- 

 land. 



2. Of an undetermined figure, from Gren- 

 gerberget, in Weftmanland*. 



% At the time When the terra figillata, or fealed earths, 

 were in general ufe, the druggifts endeavoured to have them of 

 all colours ; and for that reafon they took all forts of clays 

 and fealed them ; not alone the natural ones, but likewife 

 fuch as had been coloured by art, or had been mixed with 

 magnejla alba officinalis, or other things, were afterwards 

 vended for true boles ; and for this reafon the fpecies of 



bold 



