It shall be lawful for the said Boards of Trustees for the time being respectively from time to time to borrow money by way of mortgage, without power of sale, on the lands hereby vested in them respectively, and on any other real or personal estate of such body corporate now or hereafter to be acquired by gift, purchase, or otherwise, and to execute all necessary mortgages, deeds, or instruments. The moneys so borrowed shall be applied in the erection of buildings and tenements on the land of the body corporate by whom such money is borrowed, or in the payment of any moneys for the erection or alteration of buildings for the use of the said Athenaeums respectively.
Provided that no money shall be so borrowed except with the consent of a majority of the members of the Athenaeum so proposing to borrow, who shall be present at a meeting which shall be convened by notice advertised at least once in each of four consecutive weeks in a newspaper published or circulating in the district within which such Athenaeum is situated. Such notice shall specify the business to be transacted at the meeting, and shall fix a time and place for the holding of such meeting, such time not being less than one month from the date of the first of such advertisements.