CHAP. XIX.
Union with an armed Loadstone is stronger;
hence greater weights are raised; but the
coition is not stronger176, but
generally weaker.
n armed magnet raises a greater weight, as
is manifest to all; but a piece of iron moves towards a stone at an equal, or rather greater, distance when it
* is bare, without an iron cap. This
must be tried with two pieces of iron of the same weight and figure at an equal distance, or with one and the same
versorium, the test being made first with an armed, then with an unarmed loadstone, at equal distances.