From "Pyramids & Pool Games" by J.P. Buchanan, pub. 1896
18. Should a player in playing at a red ball pocket a pool ball without taking a red one, or vice versâ, he forfeits the value of the ball so pocketed to each of the players.
19. If a player in the same stroke takes a red ball and a pool ball, the value of his pool ball counts in his score, but he is counted as having taken a red ball, and must next play at a pool ball.
20. If a player, in taking one or more red balls, succeed in the same stroke in pocketing one or more pool balls, the value of the pool balls so taken, as well as of the red ball or balls, shall be counted in his score.
21. When a pool ball is pocketed and its own proper spot is occupied by another ball, the pool ball so pocketed remains in hand until the spot be unoccupied, or until it is the turn in rotation (as provided in Rule 5) of that pool ball to be played at, when the obstructing ball shall be spotted on its own proper spot, and the ball in hand replaced.
22 Should the white ball occupy the spot of the next pool ball to be played at in rotation (as per Rule 5), the pool ball must be spotted, and the striker must play from the baulk-circle.
23. If, in playing at the pool balls in rotation (as per Rule 5), another one be holed as well as the one played at, the value of both balls is scored to the striker, and the other ball re-spotted. Should, however, the striker fail to hole the ball he plays at, the value of the other ball, viz., the one holed, counts against him.
24. Whenever there is any doubt, the player must nominate the pool ball at which he intends to play.
25. Should a player hole his own ball, the value of the ball he played at is counted to the scores of each of the other players, and the next player plays from hand.
26. When a player plays at a stipulated pool ball (except as per Rule 23) and holes another, the value of the ball played at, not the value of the ball holed, is counted to the other players' scores..
27. Should the striker make a miss, the value of the ball played at is counted to the other players' scores
28. The value of the points played for shall be agreed upon by the players at the commencement of the game. At the end of the game, the player whose score is the highest receives the value of the difference in the number of points scored by him and by each of those beneath him respectively, the second highest scorer doing likewise, and so on in order.
29. Any spectator who sees the game wrongly marked may state the fact, whether appealed to or not.
30. Should any person other than a player move, or interfere with, a ball, it must be replaced by the marker.
31. The marker shall not give any information on the game, except at the request of any of the players.
32. A player, requiring any of the rests, may take them himself or have them handed to him by the marker, but, if a foul be made, the player shall be held responsible.
33. The marker must not tell a player how far he is "off" a ball, or whether he is, or is not, in a position for striking.
34. All disputes must be decided by the marker, whose decision is final; if he is ignorant of the matter in dispute, the majority of the spectators must decide the case.