 Stanzas from "Völuspá" consisting of dwarf names are then provided to show the lineage of the dwarfs.In the book "Skáldskaparmál" poetic means of referring to the sky are provided, some of which relate to the narrative in "Gylfaginning" involving Ymir, including "Ymir's skull" and "jötunn's skull", or "burden of the dwarfs" or "helmet of Vestri and Austri, Sudri, Nordri".A portion of a work by the 11th century skald Arnórr jarlaskáld is also provided, which refers to the sky as "Ymir's old skull".