The so-called Orphic Poems, still extant, are of much later date, probably belonging to the 4th century A.D.; they consist of: (I) an Argonautica, glorifying the deeds of Orpheus on the " Argo," (2) a didactic poem on the magic powers of stones, called Lithica, (3) eighty-seven hymns on various divinities and personified forces of nature.