17 



* 



Stone from Benares, the outside coating of which was 

 found by Mr. Howard to contain iron and nickel. The py- 

 ritaceous part in 16 grains contained, 



Sulphur ----- 2 



Iron ------ 10£ 



Nickel 1 



Earthy matter - - - 2 



15* 



The globular particles in 100 gr. contained, 

 Silica ------ 50 



Magnesia - - - 

 Oxide of iron 

 Oxide of nickel - 



15 



34 



10U 



The earthy cement in 1 00 gr. contained, 



Silica 48 



Magnesia ---,'- 18 

 Oxide of iron - - - 34 

 Oxide of nickel - - - Q\ 



102i 



150 gr. of the Sienna stone. 

 Earthy part. 

 Silica - - - 70 

 Magnesia - - 34 

 Oxide of iron 52 

 Oxide of nickel 3 



In the metallic part, 

 Iron - - 6 

 Nickel - 2 



159 



