A Quo Primum - Encyclical addressed to the bishops of Poland suggests that it would be best (for Catholics) if Jews and Catholics did not live in the same city. Dated 14 June, 1751. - http://www.newadvent.org/library/docs_be14aq.htm
Ex Quo - Announces the printing of a corrected edition of the Euchologion for the Greek Catholics. Includes remarks about the Italo-Greek Rite. 1 March, 1756. - http://www.catholic-forum.com/saints/pope0247m.htm
Allatae Sunt - Encyclical promulgated July 26, 1755, on the observance of Oriental Rites, addressed to missionaries assigned to the East. The Eastern Rites are to be preserved, and Catholics should be discouraged from transferring from one rite to another. - http://www.ewtn.com/library/ENCYC/B14ALLAT.HTM