And be it further enacted, That all and every Persons or Person who shall be desirous of purchasing under the Provisions of this Act, a Life Annuity on the Continuance of a single Life, mall be at Liberty to name any Person to be the Nominee, on the Continuance of whole Life the said Annuity is to depend; and all and every Persons or Person who shall be desirous of purchasing a Life Annuity on the Continuance of the Lives of Two Persons, and of the Life of the longer Liver of them, shall be at Liberty to name any Two Persons to be the Nominees, On the Continuance of whose Lives and of the Life of the longer Liver of them, the said Annuity is to depend : Provided always, that nothing herein contained shall be construed to prevent Persons purchasing Life Annuities under this Act, from naming themselves respectively to be the Persons on the Continuance of whose Lives such Life Annuities respectively are to depend.