THE ENGAGE.
It is customary for adversaries, on coming to the Guard, to Engage, or to join blades, on what is called the inside, that is, the right side; although there are occasions on which it is advisable to engage on the outside, or on the left; otherwise called the Quarte or Tierce sides.
Two men thus opposed to each other will at once perceive that there are two lines of attack open to them, i. e. the line inside and the line outside the blade—these, and no more. But these may be, and in fencing are, subdivided into inside above the hand, and inside under the hand, and the same subdivision for outside. This gives four lines of attack—or, to speak more simply, gives four openings through which an adversary may be assailed. Now, to protect each of these assailable points, are four defensive movements, called