1 Last year We received your letter joyfully announcing the addition of a new ecclesiastical province and the founding of four new bishoprics. - This new indication of apostolic solicitude in your nation was certainly cause for rejoicing. For among the many causes of the decline of Catholicism among you, is that the number of bishops is too small for the inordinate size of the region and the unequal distribution of its inhabitants. As a result the bishops could not exercise the vigilance they desired over the clergy and the flocks entrusted to them. They were unable either to ward off the unsuitable or to promote the strength and dignity of the Catholic name. Therefore you proved your pastoral zeal when, gathered at Sao Paolo, you petitioned the Roman Pontiff to enlarge the episcopal hierarchy. We gladly agreed to grant your request. - Now there is hope of a fruitful increase of the Christian estate, since you have more bishops; however, each one of you must apply opportune remedies to the spreading evils increasing everywhere. In this regard, We wish to recommend some useful ideas to you for increasing faith and Christian piety.
Source: Litteras a Vobis (Vatican.va)