INTRODUCTION.
Football is played on a large level field or piece of ground, near either end of which is erected a goal, composed of two upright posts eighteen feet high, with a crossbar placed ten feet from the ground. From each goal a line is cut, called the line of goal, to the edge of the field; all the part behind this line is in goal, the part between the goals being the field of action. The sides are marked off by lines similar to the lines of goal, and all the edge of the field outside them is said to be in touch. [The part behind the goal-line and also behind the touch line is called Touch-in-goal (see Plan).]
If the field in which the football is played is larger than the part on which the game is played, the touch lines and goal lines are considered as indefinitely produced. Thus much about the field.
