Section 2 Provision to be granted to a husband.

It shall and may be lawful to every heir female in possession of such entailed estate as aforesaid, to provide and infeft her husband in a liferent provision out of her entailed lands and estates by way of annuity; provided always, that such annuity shall not in any case exceed one half of the free yearly rent or free yearly value as aforesaid of the whole of the said lands and estates, after all deductions to be made from the same in manner before mentioned; but in case the said lands and estates shall already be burthened with a prior existing annuity, granted to a wife or husband under the authority of this Act, the annuity to be granted to a husband in manner before mentioned shall not exceed one third part of the said yearly rent or yearly value to be taken as aforesaid.