Christian Cyclopedia

Encyclical of Pius XII (see Popes, 33), August 12, 1950; directed RC scholars to study evolution,* existentialism,* and historicism* with a view to refuting the errors and determining the truth in them. Among other things it reaffirmed the importance of analogy* of faith and of ch. tradition in Scriptural interpretation; demonstration of the existence of God; doctrine of creation,* predestination,* existence of angels,* original sin,* transubstantiation (see Grace, Means of, IV 3); membership in the ch.; approval of Thomism (see Thomas Aquinas).