Fielding Yost, Football for Player and Spectator… (1905)
“ Proper form in tackling is a necessity to the football player. The player on the opposing eleven who is carrying the ball must be firmly grasped and thrown to the ground or he will keep up his progress toward your goal. Tackling, generally, can he separated into two divisions--long tackling and short tackling. In each case, however, the aim of the tackler should be directed at a point midway between the hips and the knees. He should get both arms securely round the legs of the runner and should grasp firmly and with a determination not to be shaken off. ”
