the
expiration of the said space of ten years, become and be absolutely null
and void, and all and every the estate, right, title, and interest of
the said 'Royal Institution for the Advancement of Learning' of, in, and
to the said last-mentioned tract or parcel of land and premises shall
cease and be determined, and be as completely extinguished as if such
conveyance and assurance had never been made or executed: All which
conditions, restrictions, and limitations shall, in apt and sufficient
language, be fully expressed in such conveyance and assurance. And upon
trust that the said John Richardson, James Reid, John Strachan, and
James Dunlop, or the survivors or survivor of them, or the heirs,
executors, or curators of such survivors or survivor of them do and
shall permit and suffer my said wife or, in case of her death, the said
Francis Desrivieres, to hold, possess, and enjoy the said tract or
parcel of land, dwelling-house, buildings, and premises, and recover,
have, and receive the rents, issues, and profits thereof until the
making and executing of the said conveyance and assurance so as
aforesaid to be made to the said 'Royal Institution for the Advancement
of Learning'; and if the said 'Royal Institution for the Advancement of
Learning' should refuse to accept and receive the said conveyance and
assurance of the said last-mentioned tract or parcel of land and
premises, upon the conditions, restrictions, and limitations herein
before expressed and directed, of and concerning the same, or should,
after the making and accepting of the said conveyance and assurance
neglect to erect and establish, or cause to be erected and established,
such University or College as aforesaid, in manner aforesaid, within the
said space of ten years, to be accounted from the time of my decease, or
if, from any legal cause, matter, or thing, the said trust so as
aforesaid to convey and assure the said last-mentioned tract or parcel
of land and premises to the said 'Royal Institution for the Advancement
of Learning,' in the manner herein before directed, should be incapable
of being accomplished or carried into effect, or otherwise become, or
be, or be deemed or construed to be invalid, illegal, or inoperative,
then and in either or any of those cases upon trust, and that they the
said John Richardson, James Reid, John Strachan, and James Dunlop, or
the survivors or survivor of them or the heirs, executors, or curators
of such survivo