Sir, - Frances Kissling, president, Catholics for a Free Choice USA, concentrates her attack (December 31st) on the doctrine defined by the Magisterium of the Catholic Church relative to the Sixth and Fifth Commandments.

This lady and her group will find the answer to their confusion if they think about the unitive significance and the productive significance of the conjugal act.

Practising Catholics also read The Irish Times. - Yours, etc.,

The Cove, Malahide, Co Dublin.