Her eyes skimmed over both, and she hardened herself to the cries of the hurt as she continued forward.
If the bar inserted into the coil is of hardened steel instead of iron, the magnetism will be less intense, but a larger proportion of it will be retained after the current has been cut off.
TO MR. WILLIAM WADE Cambridge, February 2, 1901. ...By the way, have you any specimens of English braille especially printed for those who have lost their sight late in life or have fingers hardened by long toil, so that their touch is less sensitive than that of other blind people?
They must be well hardened off before being set out in the open.