11, 6 Atl. 275: Potts vy. Potts (N. J. Ch.) 42 Atl. 1055.—Bad plea. One which is unsound or insufficient in form or substance, or which does not technically answer or correspond with the pleading which preceded it in the action.—Common pleas. Common causes or suits; civil actions brought and prosecuted between subjects or citizens, as of the crown or criminal cases.—Counterplea. A plea to some matter incidental to the main object of the suit, and out of the direct line of pleadings. In the more ancient system of Pleading, counter-plea was applied to what was, in effect, a replication to aid prayer, (c. v.:) that is, where a tenant for life or other