By Constantine Cavarnos In the first lecture, Prof. Cavarnos discusses the Heritage of ancient Greece, the Hellenic heritage in Byzantium, and the Hellenic heritage in modern times. In the second lecture he discusses Greek culture after the fall of Constantinople (1453): in the 16th Century, in the 17th Century, and in the 18th Century. He closes his lecture with remarks on the important role that was played during these centuries by books and Greek libraries.