“The Board” shall mean the Board of Trustees established by this Act:

“Prescribed” shall mean prescribed by Order under the hand of the F1Secretary of State; provided that every such Order shall be laid as soon as may be upon the table of both Houses of Parliament:

“The National Galleries of Scotland” shall, until otherwise prescribed, mean the several buildings situated in Edinburgh, and known as the Royal Institution, the National Gallery, and the National Portrait Gallery, and shall include any other buildings which may be prescribed:

“Buildings” shall include any land held with or for the purposes of a building.