XVIII.—Altebation of Rules.

No new rule or alteration, or repeal of any existing rule, shall be made except at the Annual Meeting in August, or at a Special General Meeting summoned for that purpose. Notice of any proposed alteration must be posted up in the office of the Association at least four weeks prior to the meeting at which such proposal is to be considered; and notice of any amendment on any proposed alteration must be posted up at least three weeks prior to the meeting.