The Festival of Lughnasa. A Study of the Survival of the Celtic Festival of the Beginning of Harvest. Dublin: UCD, 1982. Facsimile reprint of the first ediiton (1962). Two volumes. With 19 Plates, and folded map at rear. Illustrated card covers, a fine set. A work regarded as one of the most important contributions to Irish studies since its publication. Lughnasa, the Celtic harvest festival, at the end of July, is a celebration of the outwitting of Crom Dubh, a Pre-Christian God associated with the Celts.