by Monsignor Joseph Clifford Fenton
 
The first part:
Msgr. Fenton presents, comments upon, and interprets the documents of the ecclesiastical magisterium pertaining to the Catholic doctrine on salvation and the Church
 
The second part:
Msgr. Fenton analyzes the concept of salvation, and shows that the doctrine of salvation is determined by, and depends upon, the very nature of the Church.