Contests of the probate of nuncupative wills and appointments of executors and administrators of the estate devised thereby must be had, conducted and made as hereinbefore provided in cases of the probate of written wills: Provided, that double the period allowed for the petition of revocation of the probate of a written will shall be allowed in which to petition for the revocation and annulling of the nuncupative will.
R.L.1910, § 6232.