The proposed amendment of the Constitution authorizes the Legislature to impose an income tax graduated according to total income, and authorizes the granting of reasonable exemptions, deductions and abatements, as an alternative to the exercise of the Legislature's existing power to tax income under Article 44 of the Amendments to the Constitution. Without limiting the foregoing authorization, the proposed amendment permits any such tax to be imposed at a uniform percentage of an individual's federal income tax liability or at graduated rates applied to his total income taxable federally, and it permits reasonable variations of any federal provision, It requires that graduated rates, exemptions, and deductions be set without regard to the kind of income being taxed.