40. If the striker be going to play with the wrong ball, no person ought
to discover it to him, except his partner, when they are playing a
double match.
41. If the striker play with the wrong ball, and his adversary should
not discover it, he may reckon all the points gained by the stroke, and
the marker is obliged to score them.
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.
52. If, when the balls are very near each other, the striker should make
his ball touch the other, it is to be considered a stroke, though not
intended as such.
53. If the striker play upon a ball which is still running, the stroke
is foul.
54. Whoever stops a ball when running, loses the lead; if his adversary
do not like the ball he has to play at the next stroke.
55. Whoever retains his adversary’s cue or mace, when in the act of
striking, makes the stroke foul.
56. If the striker interrupt the course of his own ball, when running
towards a hole, after having made a miss, and it is the opinion of the
marker that it would have entered the pocket, had it not been
interrupted, he loses three points.
57. And if the striker should interrupt, stop, or put his adversary’s
ball out of its course, when running towards or into a hole, he is
subjected to the same forfeiture.
58. If the striker, after having made a hazard, or carambole, interrupt
the course of his own ball, the stroke is foul, and he cannot score any
of the points he may have thus made.
59. He who blows upon a ball when running makes the stroke foul; and if
his own ball were running towards a hole, or near a hole, and he be seen
by his adversary to blow upon it, he loses two points.
60. If the striker play with both feet off the ground, the stroke is
deemed foul.
61. Whoever strikes the table when the ball is running, makes the stroke
foul.
62. If the striker throws his mace or cue upon the table so as to baulk
his adversary, he causes him to make a foul stroke.
63. If a ball be made to go extremely near the brink of a hole, and
after sensibly standing still, falls into it, the striker wins nothing,
and the ball must be put on the same brink where it stood before the
adversary makes his next stroke; and if it should fall into the hole at
the instant the striker hath played upon his ball, so as to prevent the
success of his stroke, the striker’s and the adversary’s balls must be
placed in the same relative position, and the striker play again.