1 6^ Mr. Mushet’s Experiments on Wootz. 
place but with steel of the best quality, and is less frequent in 
very high steel, though the quality be otherwise good. 
Upon examining the break with attention, I perceived several 
laminae and minute cells filled with rust, which in working are 
never expected to unite or shut together. The grain other- 
wise was uniformly regular in point of colour and size, and 
possessed a favourable appearance of steel. 
No. 2. This cake had two very different aspects; one side 
was dense and regular, the other hollow, spongy, and protube- 
rant. The under surface was more uniformly honey-combed 
than No. l ; the convexity in the middle was greater, but to- 
wards the edges, particularly on one side, it became flatter. 
The grain exposed by breaking was larger, bluer in colour, 
and more sparkling than No. l. In breaking, the fracture tore 
b it slightly out, and displayed the same unconnected laminae 
with rusty surfaces, as were observed in No. l. Beside these, 
two thin fins of malleable iron projected from the unsound 
side, and seemed incorporated with the mass of steel through- 
out. Towards the centre of the break, and near to the excres- 
cence common to all the cakes, groups of malleable grains were 
distinctly visible. The same appearance, though in a slighter 
degree, manifested itself in various places throughout the 
break. 
No. 3. The upper surface of this cake contained several deep 
pits, which seemed to result from the want of proper fluidity 
in fusion. They differed materially from those described upon 
the convex sides of No. 1 and 2, and were of that kind that 
would materially effect the steel in forging. 
The under or convex side of this cake presented a few 
crystalline depressions, and those very small ; the convexity 
