That great Objection against the Imputation of Adam's Sin to his Posterity, considered, That such Imputation is unjust and unreasonable, inasmuch as Adam and his Posterity are not one and the same. With a brief Reflection subjoined, on what some have supposed, of God's imputing the Guilt of Adam's Sin to his Posterity, but in an infinitely less Degree, than to Adam himself.