24 
stitute another for any of the same ; or to make any new 
rule which may be considered desirable ; if and after a notice 
specifying the nature of such alteration, variation, amend' 
ment, substitution, or new rule, shall have been given to 
the Secretary fifteen days before the holding of such 
meeting. And such alteration, variation, amendment, sub- 
stitution, or new rule shall be valid if carried by a majority 
of not less than two-thirds of the Members present at such 
meeting. 
