Religion: The Rhythm Mentality

Any use whatsoever of matrimony exercised in such a way that the act is deliberately frustrated in its natural power to generate life is an offense against the law of God and of nature . . . a grave sin.

So wrote Pope Pius XI in his 1930 encyclical, Of Chaste Marriage. Roman Catholics are expressly forbidden to use contraceptives. But does the ban also apply to the "Catholic form of birth control" known as the Rhythm . Method?* Last week Servite Missionary Father Hugh Calkins, known to millions of U.S. Catholics for his columns in the weekly pamphlet Novena Notes, warned...

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