The Barddas of Iolo Morganwg, Vol. I., ed. by J. Williams Ab Ithel, , at sacred-texts.com
The circle of the summer aban; 1 of the summer ablan; 1 and of the winter alban.
417:1 p. 416 Sic in MS.; but we are inclined to regard them as clerical mistakes for alban, a primary point. It seems also as if "gwanwyn," spring, should have been written for the former summer.