7 Excess in provisions granted to be regulated by Court of Session.U.K.
Provided always, that in every case in which the provision granted to a wife or husband or to a child or children, under the authority of this Act, shall exceed such proportions of the rent or value of any entailed estate as herein before mentioned, such provision shall not be deemed to be null and void, but the same shall be voidable at the instance of the heir of entail next in the order of succession or of any other heir of entail, to such extent as such provision shall exceed those herein authorized in each respective case to be granted, but no further; and the Court of Session in either division thereof is hereby authorized and required to make the necessary order to that effect, on advising a petition to be presented to that court by the heir of entail next in the order of [such session], or any other heir of entail.