An Irish Corpus Astronomiae Being Manus O'Donnell's Seventeenth Century Version of The Lunario of Geronymo Cortes. London: David Nutt, 1915. First Edition. Pp xxxvii, 252. Frontispiece diagram and tables in the text. Text in Gaelic & English. Green buckram, gilt emblem to upper cover, an near fine copy. Edited from the manuscript in the possession of the Belfast Natural History Society, an important contribution to the knowledge of early science in Ireland.