_The Cathedral Library at Cologne._--In the year 1794, when the French Revolutionary army advanced to the Rhine, the valuable library attached to the Cologne Cathedral was conveyed for safety to Darmstadt. Among its treasures are one hundred and ninety volumes, chiefly in manuscript. A careful catalogue of them was made so far back as 1752, by Harzheim, a learned Jesuit, under the title of "An Historical and Critical Catalogue of the Manuscripts of the Library of the Metropolitan Church of Cologne." This valuable collection dates as far back as Charlemagne. It was commenced by Hildebold, Archbishop of Cologne, and archchancellor of that monarch, in the year 783. It was considerably increased by gifts from Pope Leo the Third to the Emperor Charles in 804. The Archbishops Heribertus, Evergerus, Hanno, and their successors, continued the collection by the purchase of rare manuscripts and copies of ancient parchments. In the year 1568, Hiltorp, in the preface of his work "On Divine Offices," dedicated to Archbishop Salentin, alludes more than once to this rare collection. We might quote many other authorities to authenticate the manuscripts. Jacob Pamelius, in a work published at Cologne in 1577, entitled "The Liturgy of the Latin Church" (who is quoted by Harzheim in his book "The old Codexes of Cologne"), distinctly gives their date and origin. The collection consists of eight parts, namely: 1. Bibles; 2. The Fathers; 3. Ecclesiastical Law; 4. Writers on Sacrifices, Sacraments, Offices of the Church, and Liturgies; 5. Histories; 6. Ascetics; 7. Scholastics; 8. Philosophical, Rhetorical, and Grammatical writers. Some of these manuscripts are richly illuminated, and some set with precious stones. The first codex dates from the ninth century, if not earlier, which is indicated by the capital letters, which are in gold. The seventh codex contains the Gallic, Roman, Hebrew, and Greek Psalmody, as edited by St. Jerome--"a most rare and valuable codex." The twelfth codex, in elegant folio, adorned with many illuminations and annotations of the eighth century, comprises the four Gospels. Codex one hundred and forty-three deserves particular mention. As frontispiece, there is a portrait of Archbishop Evergerus in his episcopal robes. It is richly illuminated and set with jewels. The above quotations, which we have translated from the Latin, in which language the catalogue is written, will suffice to give such of our readers as are bibliophiles some idea of a treasures which will shortly be restored to the shelves of the library attached to the Cologne Cathedral. We may mention another restoration which is on the eve of accomplishment. The celebrated collection of pictures, known as the Dusseldorf collection, will shortly be returned to Prussia, negotiations having already commenced for that purpose. The collection, which comprises some of the finest specimens of the German and Dutch schools, is at present at Munich.--_All the Year Round_.