THE LOADSTONE, OR MAGNET. 75,

 

one attracts or draws the needle, while
the other repels it or pushes it away.
One of these poles is called the north
pole, and the other the south pole. Take
the needle that has been magnetized,
and place it on a pivot, horizontally, or
on a level with the ground, so that it
can turn easily, and it will point ex-
actly in a north and south line; one
end of the needle will point to the
north, and the other to the* south.
Move it, and let it point in any direc-
tion you choose, and it will go back
again, aS soon as you take your fingers
off, and leave it free.