If the said Commissioners shall vary or disallow any Resolutions so passed as aforesaid, they shall, as soon as conveniently may be, call a Second Meeting of Persons whose Claims have been allowed by the Valuer, which Second Meeting shall be attended by an Assistant Commissioner, who shall preside thereat; and at such Second Meeting the Resolutions passed at the First Meeting may, by a like Majority of the Persons present interested in respect of Value, be varied, altered, or rescinded, and other Resolutions may be passed for appropriating such Surplus Monies for the Purposes herein-before mentioned; provided that such Resolutions shall in like Manner be of no Force or Effect unless confirmed and allowed by the said Commissioners under their Seal.