OF ORES AND COALS. 



bafkets, and without, of the fame materials. The colours are 

 fplendid and permanent. 



7. Snow-white, arborefcent lead-ore, like fome of the fubma- 

 rine corallines. 



8. Another piece, the branches fewer and fhorter, and more 

 irregular, the intervals a beautiful froil-work. 



9. A .cylindric column of white lead-ore, tubulous, three 

 inches long, and two inches in diameter, the furface thick fet 

 with arborefcent moots, of unequal lengths. 



10. White lead-ore compofed of feveral tranfparent tubes, of 

 unequal lengths, the longeft two inches and a half, am! bifid at 

 the end, in the bafe three inches over, ajt the extr^ni. y tv-'O 

 inches ; a fmall cylindric column, an inch long, affixed ^y uie 

 ends on one fide, making a cavernula or hollow nn'lei neath, 

 towards the middle, the furface fparkling with poir>-ed fluds ; 

 the reft, towards the bafe, alfo gloffy with ramofe efflorefcences. 



11. A column of white lead-ore, tubulous, compreiTcd, and 

 tapering, with a ramofe moot at the extremity, and a longitudi- 

 nal furrow down the middle on one fide ; oblique tranfverfe ftrise 

 on the other fide ; the furface glolTy with fliort pointed Oioots. 



12. White lead-ore, with a vein of blue lead-ore running 

 through it, very bright, with a concretion of the fame at one 

 end, angular and pointed, like cryftalline fparks, the blue emu- 

 lating the lapis lazuli in luftre. 



Thefe 



