i68 Mr. Mushet’s Experiments on Woot%. 
spongy throughout the mass. In the act of cutting, a loose 
pulverized matter was disengaged from some of the cells, 
possessed of a shining appearance. 
The fractures obtained in consequence of the division of the 
half cakes, presented a flatfish crystallized appearance, more 
resembling very white cast iron, than steel capable of being 
extended under the hammer. One of the middle cuts was 
entirely cellular with crystallized interiors, and incapable of 
drawing ; the corresponding cut of the other half cake was 
drawn into a straight bar three quarters of an inch in breadth, 
and three-eighths thick, but was covered with cracks and flaws 
from end to end. The colour of the break was one shade 
lighter than No. 1 , it tore less out, was equally yolky, and 
possessed on the whole an aspect very unfavourable for good 
steel. 
The other two outside quarters were also drawn into shape, 
one under the tilt hammer, and the other by hand. These 
were more solid in the fracture, possessed fewer surface- 
cracks, stood a higher degree of heat, tore out more, and ex- 
hibited a silky glossy grain, at least two shades lighter in the 
colour than the centre pieces. 
. . . ... ' ( ' ” . • . 
Forging gd Cake. 
One half of this cake, first subjected to be cut, was found 
softer than any of the preceding, and exhibited no symp- 
tom of cracking. The other half was cut at three heats, 
but found loose and hollow in the extreme. A considerable 
portion of the same brilliant powder, formerly noticed, was 
here again disengaged. It was carefully taken up for exami- 
nation, and found to be very fine ore of iron in a pulverescent 
