CHAPTER I.

ART. PAGE 1. Introductory 1 2. Hydraulic Works of Chaldea and Egypt 2 3. Structural Works in Chaldea and Egypt 4 4. Ancient Maritime Commerce 7 5. The Change of the Nile Channel at Memphis 8 6. The Pyramids 8 7. Obelisks, Labyrinths, and Temples 12 8. Nile Irrigation 13 9. Prehistoric Bridge-building 14 10. Ancient Brick-making 15 11. Ancient Arches 16