One notable palimpsest is the Archimedes Palimpsest. The foremost document containing the work of Archimedes is the Archimedes Palimpsest. The earliest known manuscript are fragments of a Veronese palimpsest of the ninth century. The fragmentary state of the palimpsest leaves much in doubt. The manuscript is a palimpsest with quranic verses in both upper and lower texts. Yet another method involved the palimpsest, a manuscript which recycled an older manuscript. The manuscript is written on parchment, and comprises two layers of text (see palimpsest). An exception is the "Archimedes Palimpsest" (see below). In the floor of the choir is an unusual monumental brass which is a palimpsest. Critics argue that this reconstruction makes the book akin to a multi-layered palimpsest. The remaining traces (see palimpsest) of such channels allows the mining sequence to be inferred. Disks used to be known as GNOME Disk Utility or palimpsest Disk Utility. A series of propositions of geometry are proved in the palimpsest by similar arguments. She also appeared in the "" episode "Palimpsest".