The alleys upon which the game shall be played shall not be less than 41 nor more than 42 inches in width. The length from the centre of No. 1 pin spot to the foul line shall be 60 feet. Back of the foul line there shall be a clear run of not less than 15 feet. The pin spots shall be clearly and distinctly described on or imbedded in the alleys and shall be so placed 12 inches apart from centre to centre. They shall be 2¼ inches in diameter. The pin spots numbered 7, 8, 9 and 10 shall be placed 3 inches from the pit edge of the alleys, measuring from the edge to the centre of such pin spots.
The pins shall be spotted on the pin spots placed upon the alleys according to the following diagram, and the pins and spots shall be known by the numbers as follows:
The pins shall be of the following design and measurements: 15 inches in height, 2¼ inches in diameter at their base, 15 inches in circumference at a point 4½ inches from their base, 11⅝ inches in circumference at a point 7¼ inches from their base, 5¼ inches in circumference at the neck, a point 10 inches from the base; 8 inches in circumference at the head, a point 13½ inches from the base. The taper from point to point shall be gradual, so that all lines shall have a graceful curve.
The balls shall not in any case exceed 27 inches in circumference nor exceed 16 pounds in weight. Any sized ball of less circumference or weight may be used.
Two alleys immediately adjoining each other shall be used in all games. The contesting teams shall successively and in regular order roll one frame on one alley, and for the next frame alternate and use the other alley, so alternating each frame until the game is completed.
In delivering the ball the player must not permit any part of his foot, while any portion thereof is in contact with the alleys, to rest or extend on, over or beyond the foul line, nor shall any part of his person be permitted to come in contact with any part of the alleys beyond the foul line, at any time before the delivered ball shall have reached the pins. A ball delivered contrary to the provisions of this rule shall be a foul ball, and shall be so declared by the umpire immediately such ball so becomes foul.
No count shall be made on a foul ball, and any pins which are knocked down or displaced thereby shall be at once respotted. A foul ball shall count as a ball rolled against the player.
Pins which are knocked down or displaced by a ball which leaves the alley before reaching the pins, or from a ball rebounding from the rear cushions, do not count, and they shall be immediately respotted.