On Bible Translations That Catholics are Permitted to Read

I have started to read "Introduction to the Bible" by Fr. John Laux, M.A.. The following is extracted from pg. 20: > The Third Plenary Council of Baltimore (1884) says in its Pastoral Letter: "It can hardly be necessary to remind you, beloved brethren, that the most highly valued treasury of every family library, and the most frequently and lovingly made use of , should be the Holy Scriptures." > 3. We are not, however, allowed to read any and every translation of the Bible , but only such as has been approved by ecclesiastical authority.... Undoubtedly, among other things perhaps, the said "approval by ecclesiastical authority" requires a valid *Imprimatur*. Does anyone know which Pope decreed such and which encyclical (or some other document) may the described prohibition be contained in?