On the walls are beautiful sculptures which are exquisite examples of Egyptian art, and a chronological table of the Kings of Abydos. Here Seti I. and Ramses IL, his son, are represented as offering homage to their many ancestors seated upon thrones inscribed with their names and dates. Mariette discovered eight hundred tombs belonging for the most part to the Middle Kingdom. At Denderah he discovered the famous Ptolemaic temple of Hathor, the goddess of love, and his accounts of these discoveries make up a large volume. Continuing his labours, he excavated much of the site of ancient Thebes and the temple of Karnak, and, south of Thebes, the temple of Medinet-Habu. At Edfu Mariette found the temple of Horus, built during the time of the Ptolemies, whose roof formed the foundation of an Arab village. After persevering excavations the whole magnificent plan of the temple stood uncovered, with all its columns, inscriptions, and carvings nearly intact.* * In connection with the architecture of the ancient Egyptian tombs, it is interesting to note that there was a development of architectural style in the formation of Egyptian columns not dissimilar in its evolution to that which is visible in the case of the Greek and Roman columns. The earliest Egyptian column appears to have been of a strictly geometrical character. This developed into a column resembling the Doric order. A second class of Egyptian column was based upon plant forms, probably derived from the practice of using reeds in the construction of mud huts. The chief botanical form which has come down to us is that of the lotus. A more advanced type of decoration utilised the goddess Hathor for the support of the superincumbent weight and has its analogy in the decadent caraytides of late Roman times.