When the reader finds, in the explanation of the following diagrams, directions to strike the cue-ball at a stated distance above or below the centre, a reference to this plate will show the exact point indicated by the fractions.
The letters b, c, d, e, denote points at which the ball may be struck, giving to it four distinct movements, impulsion, rotation, English or twist, and draw or recoil.
DIAGRAM OF STROKES.
PLATE I.
EXPLANATION OF STRENGTH OF STROKE.
Stroke 1.—A one-cushion stroke, denominated SLOW.
Stroke 2.—A two-cushion stroke, denominated MEDIUM.
Stroke 3.—A three-cushion stroke, denominated ORDINARY.
Stroke 4.—A four-cushion stroke, denominated HARD.
Stroke 5.—A five-cushion stroke, denominated VERY HARD.
The fractional parts of the table are indicated by the figures ¼, ½ or ¾, and when employed are to be understood as directing that such force shall be imparted to the cue-ball as to carry it the distance denoted, either in excess or below the space traversed by the ball when struck with either of the five degrees of strength; thus ½ in excess of slow instructs the player to use such force as shall return the ball one-half the length of the table after contacting with the cushion.