[edited] with an introduction and notes by Vésteinn ólason. edited with an introduction and notes by Stephen Regan. edited with an introduction and notes by Viear Hreinsson. Edited with an introduction and notes by David Norton. edited with an introduction and notes by Michael Newton. edited with an introduction and notes by Robin Skelton edited with an introduction and notes by Paul Hammond. edited with an introduction and notes by E.R. Wood. edited with an introduction and notes by John N. King. edited with an introduction and notes by Judith M. Brown.