"In the Harappan cities some 4200 seals, many of them duplicates, have been found which carry short inscriptions in an otherwise unknown script. There is not the slightest doubt that this harvest of Harappan writings is but the tip of an iceberg, in this sense that the Harappan culture must have produced much more copious writings, but that most of them disappeared because the writing materials were not resistant to the ravages of time, particularly in the Indian climate. This fatality can still be seen today, when the libraries of many impoverished maharajas' castles are full of manuscripts which are decaying under our very eyes, turning large chunks of India's national memory and heritage into dust. Even of the oldest and most popular texts, the extant manuscripts are seldom older than a few centuries, copies made as the only guarantee to save the texts from the ravages of time which were destroying the earlier copies. It is fair to assume that a text corpus proportionate in size to the enormous extent of the Harappan cultural space, has gone the same way into oblivion."