The Indus Civilization c4.13

c4.13

The deterioration of the bricks was not by any means so rapid when Mohenjo-daro was an inhabited city, for the walls above the soil could absorb but little salt, while the buried walls of earlier times, which served as foundations, were permanently damp. This state of things was due to the fact that the plain round the city was then well watered, and consequently the destroying action of the salt was checked, although, as we know, the buildings needed frequent repair. Since that time the climate of Sind has become gradually drier, and the deposit of surface salt has increased in proportion. It is interesting to reflect that it is only the humidity of our climate which prevents the same thing from happening in England.