BACKING the Sails, in navigation: to arrange them in a situation that will force the ship to retreat, or move backwards. This is, however, only done in narrow channels, when a ship is carried along sidewise by the tide or current, and wants to avoid any thing that may interrupt her progress, as shoals, vessels at anchor, &c. or in the line of battle, when a ship wants to be

imme-

* See Mezzotints.

Back, Backing

* See Law, Part III. n° 109, 110.

immediately opposite to another with which she is engaged.