£02 Mr. Scoresby’s experiments and observations on the 
The hammering being continued for some time longer, by 
the compound process , the lifting power was sensibly aug- 
mented ; but it yet refused 73 grains. 
No. II. 
The same steel wire (S t i) softened by heating to redness, 
a. By simple process. 
After 5 blows this wire now lifted 73 grains. 
4 , more blows - - - 186. 
The wire bejng now bent was straightened, by which it 
lost a great part of its magnetism ; it was therefore raised to 
a lifting power of 186 grains, as before, by a number of very 
slight blows. 
10 gentle blows were now struck, but its lifting 
power was still - - - - 186 grains. 
20 more blows increased its attractive force very 
sensibly ; but it still refused the nail of 246 grains. 
These last 30 blows having been productive of very little 
effect, the power was considered as being sufficiently near 
the maximum by this process, to serve as a comparison with 
the compound process. 
b. By Compound process. 
20 slight blows on the upper iron rod, I ii, now 
increased the lifting power of the wire to 246 grains. 
And 20 more slight blows raised its power to 326. 
But 60 more slight blows produced no higher effect. 
these experiments were made, and also on account of this being the most palpable 
and striking test of the high force of attraction attained by the process. 
