Moreover, it is by no means a bad policy to have the blocking last until the ball is actually seen in the air in front of the line, because then, if the kick be stopped, the tackles can go back to assist the backs in recovering the ball. The blocking for a kick, as a rule, should be close; that is, every opponent must be matched from the centre out, leaving the free man or men on the ends. This rule has its exceptions, but when there is any doubt about the play it is safest to block close, and take the chances from the ends rather than through breaks in the line. In blocking for a run the case is very different, and depends upon the point of assault. If the run is to be made around the right end, for instance, by the left half-back, the right tackle must block very slowly and long. That is, he must not dash up to his man the instant the ball is snapped and butt him aside, for the runner will not be near enough to derive any advantage from this, and the opponent will easily recover in time to tackle him. Rather should he avoid contact with his man until his runner makes headway, and then keep between the opponent and runner until the latter puts on steam to circle, when it is his duty to engage his man sharply, and thus let the runner pass. In blocking for an inside run upon his own side, he should turn his man out or in, as the case may be, just as the runner reaches the opening, being particularly careful not to make the break too early, lest the opponent reach the runner before he comes to the opening. THE GUARD The position of guard, while it requires less agility than that of tackle, can never be satisfactorily filled by a man who is slow. Many a coach makes this mistake and fails to see his error until too late to correct it. I remember once seeing upon a minor team a guard who weighed at least 190 pounds replaced by a man of 155, and the latter actually filled the position--greatly to my astonishment, I confess--in excellent fashion. This does not at all go to prove that weight is of no value in a guard. On the contrary, it is a quality especially to be desired, and if one can find a heavy man who is not slow he is the choice by all means. But weight must be given work to do, and that work demands practice, and slowness of execution cannot be tolerated. At the outset the coach must impress this fact upon the guards, and insist upon their doing their work quickly. It is really wonderful how much better the effect of that work will prove to be when performed with a snap and dash that are not difficult to acquire. [Illustration: B. W. TRAFFORD. Harvard.]