receipted voucher for an emergency disbursement, after being 
approved by the Secretary of the Pension Board and counter- 
signed by the Chairman thereof, shall be forwarded to the 
Assistant Treasurer, who shall affix an identification stamp and 
thereupon draw the necessary check against the Pension Fund 
Account for the amount of the voucher to the order of the 
Bursar, in reimbursement of the sum so advanced. 
§ 10. Subject to the provisions and restrictions contained in 
the resolution of the American Museum of Natural History, 
adopting rules for the establishment of the said fund, and for 
the administration and disbursement thereof, four members of 
such Board shall constitute a quorum for the transaction of its 
business. 
$ 11. No alterations shall be made in these By-Laws, unless 
at a regular meeting of the Pension Board, or at a special 
meeting called for this purpose; nor by the votes of less than 
a majority of all of the members of the Pension Board; nor 
without notice in writing of the proposed alterations, embodying 
the amendment proposed to be made, having been given at a 
previous meeting. 
