58 
GREENLAND VOYAGE. 
to be magnetized to saturation. A pair of them 
now possessed a lifting power of two pounds and a 
half. 
The next step was to touch the bars intended 
for the compound magnet, by means of these six 
bars now magnetized. For this purpose, the six 
bars were combined into two magnets, by tying 
three of them together, with similar poles in con¬ 
tact ; these two were then placed, with opposite 
poles, in connection, and tied together at one end, 
but separated about the third of an inch at the 
other, so as to form one compound magnet, and a 
conductor was kept constantly applied to the open 
end of it, when not in use, to preserve the power 
from being lost. One of the bars of the horse¬ 
shoe magnet, with a conductor across the poles, 
was now placed on a board, in a groove cut out so as 
to hold it fast under the operation. The straight 
bar magnet was then placed erect on the middle 
of it, with the separated poles downward, and rub¬ 
bed against the liorse-shoe bar, from the middle 
to one of its poles, until the north pole of the one 
was in connection with the pole intended to be¬ 
come south of the other: from thence it was rub¬ 
bed back again, with the south pole of the mag¬ 
net in advance, as far as the other extremity, or 
that intended for the north pole of the horse-shoe 
bar. Two or three strokes of this kind being 
