Ch.XXIV, p.545, f.1
"Picture to yourself a Persian city. The streets are narrow, of a width of four or five or eight feet at the most. The surface unpaved has so many holes that one must proceed cautiously to avoid breaking one's legs. The houses, with no windows opening on the street, present on both sides unbroken walls, generally about fifteen feet high and topped with a terrace without a railing, sometimes crowned by a bala-Khanih or open pavilion which is usually an indication of a wealthy house. All that is of adobe or bricks baked in the sun. The uprights are of bricks baked in the kiln. This type, of venerable antiquity and in use even before historical times in the ancient cities of Mesopotamia, has many advantages: it is inexpensive, it is sanitary, it adapts itself to modest or pretentious plans; it can be a cottage or a palace entirely covered with mosaics, brilliant paintings and gold ornaments. But, as is always the case in this world, so many advantages are offset by the ease with which such dwellings crumble to pieces. Cannon balls are not needed, the rain is quite sufficient to demolish them. Thus we can visualize these famous sites covered, according to tradition, with immense cities of which nothing remains but ruins of temples and palaces and mounds scattered over the plains. "In a few years whole districts vanish without leaving a trace, if the houses are not kept in repair. As all the cities of Persia are constructed after the same plan and of the same material, it is easy to visualize Zanjan with her crenellated walls with high towers, her crooked streets unpaved and full of ruts. In the midst of these rose a formidable citadel called `Chateau d''Ali-Mardan Khan.'" (Comte de Gobineau's "Les Religions et les Philosophies dans l'Asie Centrale," pp. 197-198.)