If at any time it shall be deemed expedient to adopt any new Rule, or alter any existing one, or to make any other proposition which may appear to require the sanction of a general meeting, the Committee may call an extraordinary general meeting, on giving fourteen days' notice, specifying the subject intended to be submitted—the discussion at which meeting shall be confined to the subjects specified alone. The Committee may also call an extraordinary general meeting on the requisition of ten Members, under restrictions similar to the preceding.