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XVIII.—Should there appear cause in the opinion of the 
Council for the expulsion from the Society of any Member, a 
Special General Meeting of the Society shall be called by the 
Council for that purpose; and if two-thirds of those voting 
agree that such Member be expelled, the Chairman shall declare 
this decision, and the name of such Member shall be erased 
from the books. 
XIX.—Every Member shall have the privilege of introducing 
one visitor at each Ordinary Meeting. The same person shall 
not be admissible more than twice during the same session. 
XX.—Notices of all General or Special Meetings shall be 
issued to each Member by the Secretary, at least three days 
before such Meeting. 
XXI.—The President, Council, or any ten Members can 
convene a Special General Meeting, to be called within fourteen 
days, by giving notice in writing to the Secretary, and stating 
the object of the desired Meeting. The Circular convening the 
Meeting must state the purpose thereof. 
XXII.—Votes in all elections shall be taken by ballot, and in 
other cases by show of hands, unless a ballot be first demanded. 
XXITI.—No alteration shall be made in these Laws, except 
at an Annual Meeting, or a Special Meeting called for that 
purpose; and notice in writing of any proposed alteration shall 
be given to the Council, and read at the Ordinary Meeting, at 
least a month previous to the meeting at which such alteration 
is to be considered, and the proposed alteration shall also be 
printed in the Circular convening such meeting; but the 
Council shall have the power of enacting such Bye-laws as may 
be deemed necessary, which Bye-laws shall have the full power 
of Laws until the ensuing Annual Meeting, or a Special Meeting 
convened for their consideration. 
