A Catechism of Modernism
Modernism is a heresy condemned by Pope St. Pius X (1903-1914). yet it is the predominating error in the Catholic Church since Vatican II (1962-1965). This book exposes its errors. called by St. Pius X the "synthesis of all heresies." St. Pius X commended the author of this catechism; expressing the hope it would receive wide circulation.