Rugby football--for it is from the Rugby Union Rules that our American Intercollegiate game was derived--dates its present era of popularity from the formation in England, in 1871, of a union of some score of clubs. Nearly ten years before this there had been an attempt made to unite the various diverging football factions under a common set of laws; but this proved a failure, and the styles of play became farther and farther apart. Of the Association game one can say but little as regards its American following. It is quite extensively played in this country, but more by those who have themselves played it in Great Britain than by native-born Americans. Its popularity is extending, and at some day it will very likely become as well understood in this country as the derived Rugby is to-day. Its essential characteristic is, that it is played with the feet, in distinction from the Rugby, in which the ball may be carried in the hands. To revert to the Rugby Union. Years before the formation of this association the game was played by sides almost unlimited in numbers. One of the favorite school matches was "Sixth form against all the rest of the school." Twenty on a side, however, became the ruling number; but this was, after a time, replaced by fifteens, as the days of twenties proved only shoving matches. With the reduction in numbers came increased running and an added interest. This change to fifteens was made in 1877, at the request of Scotland. At once there followed a more open style of play, and before long short passing became common. In 1882 the Oxford team instituted the long low pass to the open, and by the use of it remained undefeated for three seasons. [Illustration: HARRY W. BEECHER. Yale.] After the decrease to fifteen men the number of three-quarter-backs, who really represent our American half-backs, was increased from one to two, and two full-backs were played. A little later British captains put another full-back up into the three-quarter line, playing with only one full-back. The Englishmen also play two men whom they call half-backs, but whose duties are like those of our quarter-back, for they seize the ball when it comes out of the scrimmage and pass it to a three-quarter for a run.