The Barddas of Iolo Morganwg, Vol. I., ed. by J. Williams Ab Ithel, , at sacred-texts.com
Spring from Alban Arthan to Alban Eilir, and thence to Alban Hevin; and from thence Summer to Alban Elved; and from thence Winter to Alban Arthan. After that: Spring; Summer; Autumn; and Winter.