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Such By-Laws, when once adopted, may be amended at any 
meeting of the Trustees, by a vote of a majority of those present, 
after a month's notice in writing of such proposed amendment. 
ARTICLE XI. 
The contribution of $1000 or more to the funds of the Museum, 
at any one time, shall entitle the person giving the same to be a 
Patron of the Museum, who shall have the right in perpetuity to 
appoint the successor in such patronship. 
The contribution of $500, at one time, shall entitle the person 
giving the same to be a Fellow, who shall have the right to ap- 
point one successor in such fellowship. 
No appointment of a successor shall be valid unless the same shall 
be in writing, endorsed on the certificate, or by last will and testament. 
The contribution of $100, at one time, shall entitle the person 
giving the same to be a Life Member. 
Any person may be elected by the Trustees to either of the 
above degrees, who shall have given to the Museum books or 
specimens, which shall have been accepted by the Executive Com- 
mittee, to the value of twice the amount in money requisite to his 
admission to the same degree, and the President and Secretary 
shall issue diplomas accordingly under the seal of the Museum. 
The Trustees may also elect Honorary Fellows of the Museum 
in their discretion. 
ARTICLE XII. 
No alterations shall be made in this Constitution, unless at a 
regular quarterly meeting of the Trustees ; nor by the votes of 
less than two-thirds of all the Trustees ; nor without notice in 
writing of the proposed alteration, embodying the amendment 
proposed to be made, having been given at a regular meeting. 
