magnetic needle

This point is noted for the singular agitation of the magnetic needle.

It is added, that the girl produced no effect on the magnetic needle.

Why, we enquire, does the magnetic needle set north and south?

The length of the magnetic needle is 12 inches, and its axis is made of gold and copper.

The direction taken by a magnetic needle is parallel to the magnetic meridian.

It consists of a magnetic needle mounted at the center of a coil of wire.

Magnetic needle tells you what's going on in the sun, the stars.

So did the discovery of the magnetic needle and the new world.

It is, or seems to be, a consciousness of direction that is as unerring as the magnetic needle.

Inclination of magnetic needle probably connected with, II, 19.