C 447 3 
Antimonium crudum. Freind . ^ • 4.000 
Id. "Davies. . . . .3.960 
Black Sand, commonly ufcd on writing. 
Boyle. V. 33 . b. . . • 4. 600 
Crocus Metal lorum. Mujschenb. . .4.500 
Id. Freind. . ... 4.444 
Hematites. Mufschenbr. . .4.360 
Id. Boyle. V. 6 . a. . * .4.150 
D°. Englifh. Boyle. . .' . 3 .760 
Copper Ore, rich. Boyle. . . .4.170 
D°. ifoy/*. . . . .4.15-0 
Copper (tone. Boyle. . 4.090 
Emeri. Boyle. V. 26. . . 4.000 
Mangancfe. Boyle. . . . 3.530 
A blew Slate with fhining particles. J. C. 3.500 
Iron Ore, a piece burnt or roafted. Harris. 3*333 
Cerufla. Item Chalybs cum Sulphure. pp. 
Freind. . . . .3.15-8 
Lapis Lazuli. J.C. . . .3.054 
L>*. Boyle. V. 6. b. . . 3.000 
L)°. Boyle. .... 2.980 
Gold Ore. Boyle. V. 29. £. . .2.910 
D°. not rich, brought from the Eaft Indies. 
Boyle. .... 2.652 
Another Lump of the fame. £07/^. . 2.634 
A Mineral Stone, yielding 1 part in 160 
Metal. J. C. . . . 2.650 
The Metal thence extraded. J. C. 8.500. 
Pyrites homogenea. Fahrenheit. . . 2.584 
Black Lead. Boyle. V. 27. . . 1.860 
y£s viride. Freind. .... 1*714 
Plumbum uftum. Freind. . . . 1.666 
Nnn The 
