42. If the striker, after having made a hazard or carom, move with his hand or stick either of the balls which remain upon the table, the stroke is deemed foul.
43. If a ball be found to have been changed during the game, and it is not known by which player, the game must be played out with the balls as they then are.
44. No one has a right to take up or otherwise move a ball, without permission of the adversary.
45. If a striker touch his ball with the instrument twice, the stroke is foul.
46. If a striker be impeded in his stroke by his adversary or a spectator, he has a right to recommence the stroke.
47. If the striker should accidentally move his own ball, without intending at the time to make a stroke, he loses no point; but the adversary may replace the ball.
48. If the striker touch his ball, and make his mace or cue go over or past it, he loses one point.
49. If either of the players, in the act of striking, happen to move his own, the adversary’s, or the red ball, from the place it occupied on the table, it is a foul stroke.
50. When the striker’s, and either of the other balls are so close as to touch, and in playing the former off, the latter is moved from its place, the stroke is considered foul.
51. If the striker, in attempting a stroke, do not touch his ball, it is no stroke, and he must strike again.