RULE 50. The Captains and Coachers are restricted in coaching to the Base Runner only, and are not allowed to address any remarks except to the Base Runner, and then only in words of necessary direction; and no player shall use language which will in any manner refer to or reflect upon a player of the opposing club, or the audience. To enforce the above, the Captain of the opposite side may call the attention of the Umpire to the offence, and upon a repetition of the same the club shall be debarred from further coaching during the game. THE UMPIRE. RULE 51. The Umpire shall not be changed during the progress of a game, except for reasons of illness or injury. HIS POWERS AND JURISDICTION. RULE 52. SEC. 1. The Umpire is master of the Field from the commencement to the termination of the game, and is entitled to the respect of the spectators, and any person offering any insult or indignity to him must be promptly ejected from the grounds. SEC. 2. He must compel the players to observe the provisions of all the Playing Rules, and he is hereby invested with authority to order any player to do or omit to do any act as he may deem necessary, to give force and effect to any and all of such provisions. SPECIAL DUTIES. RULE 53. The Umpire's duties shall be as follows: SEC. 1. The Umpire is the sole and absolute judge of play. In no instance shall any person be allowed to question the correctness of any decision made by him except the Captains of the contending nines, and no other player shall at such time leave his position in the field, his place at the bat, on the bases or players' bench, to approach or address the Umpire in word or act upon such disputed decision. Neither shall any Manager or other officers of either club--except the Captains as before mentioned-- be permitted to go upon the field or address the Umpire in regard to such disputed decision, under a penalty of a forfeiture of the game to the opposing club. The Umpire shall in no case appeal to any spectator for information in regard to any case, and shall not reverse his decision on any point of play on the testimony of any player or bystander. SEC. 2. Before the commencement of a Game, the Umpire shall see that the rules governing all the materials of the game are strictly observed. He shall ask the Captain of the Home Club whether there are any special ground rules to be enforced, and if there are, he shall see that they are duly enforced, provided they do not conflict with any of these Rules. He shall also ascertain whether the fence in the rear of the Catcher's position is distant ninety feet from the Home Base.