IN utter contrast to Plate XIV the offense have succeeded in rounding the left flank of the first line of defense and still has one interferer free for the second defensive line. Note the extended condition of what remains of the lines of scrimmage showing that the runner travelled a considerable distance laterally before he was able to flank the primary line of defense.

Although the offense appears to a great advantage, the runner was forced out of bounds by the third line who can be seen approaching.

The stake, top of which can be seen in lower left hand corner, designates point ten yards in advance of place where ball was put in play. Centre College vs. Harvard 1921.

During this period the game opened with the time-honored "kick-off," such as is in vogue today, but the rules then did not stipulate the distance which the ball must be kicked. This loophole was eventually utilized by some strategist at Princeton, who instead of kicking the ball well down the field as was the custom, merely touched it with his foot, thus meeting the technical requirements of the rule, and then passed it to another of his side for a rush. The formation used for this play resembled a V, with the runner within the wedge thus formed. Although this play was, of course, formidable, its ultimate strength was not disclosed until the opening of the second half of the Harvard-Yale game in 1892. Yale had begun the game with the orthodox wedge play, but when Harvard's turn came in the second half, instead of the players grouping near the ball as heretofore, the two sides of the V in groups of five men, took station fifteen yards to the rear and well toward each sideline. One man was left in control of the ball, who, when all was ready, waved his hand and the two sections started on the run, so converging as to form at the time they reached him a perfect "flying wedge." Meanwhile the ball remained upon the ground, thus preventing the defense from advancing beyond the restraining line until the last moment, when it was legally put into play and passed to a player within the walls of the V. The Yale line was naturally overwhelmed by the weight and speed of this play, and had not the runner tripped over one of his interferers at Yale's twenty yard line, he would have undoubtedly scored a touchdown. No innovation has ever been devised as spectacular or sensational as this play. Having been perfected in secret practice it came as a total surprise to all except the Harvard team, and for years after spectators have vainly looked for some similar sensation.