Escpcrhnents Kin Wontz* %7 



The same or similar pha?nomcna take place in separating 

 crude imn fwrn its ores, when highlv carbonated, and diffi- 

 cnk, tVon.i ail cxeess of carbon, of being fused. 



The division of the wootz cake by the manufacturers of 

 riindostan, I apprehend, is merely to facilitate its subse- 

 quent application to the purposes of the artist ; it may serve 

 ut the same time as a test of the quality of the steel. 



To ascertain, by direct experiment, whether wootz owed 

 its liardness to an extra quantity of carbon, the followhig 

 experiments w€re performed with various portions of wootz, 

 <jf conmion cast steel and of white crude iron, premising 

 that, in operations with iron and its ores, I have alwavs 

 found the comparative measure of carbon best ascertained 

 b\- the quantity of lead w hich was reduced from ilmt glass. 



I si Cake. 



Fragnnents of woofK - - 63 grs. 



Pounded flint glass three times the weight 195 

 '-This mixture was exposed to a heat of \60° of Wedge - 

 wood, and the wootz fused into a well erystallizod spherule 

 of steel. A thin crust of revived lead was found below the 

 wootz, which weighed Q grains, or -j^^^^ the weight of the 

 wootz. 



ed Cuke, 



Fragments of wootz - - 80 grs. 



Flint glass, same proportion as above - 240 

 The fusion of the mixture in this experiment was pro- 

 ductive of a mass of lead weighing 10 gr.vins, equal to l-Stli 

 the weight of the wootz. 



3d Cuke. 



Fragments of wootz - - "5 gTS. 

 Flint glass - - - ^25 



The mass of lead precipitated beneath the steel in tlils 

 experiment, amounted to 9 grains, or -j-L"^ the weight of' 

 the wootz employed. 



4th Cake. 



Fragments of wootz - - 93 grs. 

 Flint glass - - - 279 



Lead obtained, precipitated from the glass by means of 

 the carbon of the wootz, 14,} grains; equal to 7VV0- ^^'''^ 

 weight of the wootz. 



5th Cake. 



Fragment; of wootz - - ^9 grs. 

 Film ulass - - - 207 " 



The 



