How this period was computed by the Cretan peasant, or whether it was computed at all on any system known to him, is not related; but very probably the longevity of trees was the original basis of the calculation; for the peasants will often point out some old contorted olive-trunk as a thousand or more years old; I was once even taken to see a tree reputed to have been planted by Alexander the Great. But at any rate it is clear that both in ancient and in modern times the nymphs have always been believed to be subject to ultimate death, and however the tenure of life may be determined in the case of the others, the Dryads have without doubt been generally reckoned coeval with the trees that are their homes. An exception to this rule must however be made in the case of Nereid-haunted trees which do not die a natural death, but are felled untimely. A Nymph’s life is not to be cut short by a humanly-wielded axe. In the Homeric Hymn indeed, which I have quoted, we learn that men hew not such trees with steel; and the same might, I think, be said at the present day with certainty of those trees which are known to be haunted. But the unknown is ever full of risk; and the woodcutter of the North Arcadian forests, mindful of the sacrilege which he may commit and fearful of the vengeance wherewith it may be visited, takes such precautions as piety suggests. With muttered appeals to the Panagia or his own patron-saint and with much crossing of himself he fills up the moments between each bout of hewing at any suspected tree (unfortunately the finest timber on which he plies his axe is also the most likely to harbour a Nereid) and finally as the upper branches sway and the tree trembles to its fall, he runs back and throws himself down with his face to the ground, in silence which not even a prayer must break, lest a Nereid, passing out from her violated abode, hear and espy and punish. For, as has been said before, nothing is more sure than that he who speaks in the hearing of a Nereid loses from thenceforth the power of speech; while the practice of hiding the face in the ground is not a foolish imitation of the ostrich, but is prompted by the belief that a Nereid is most prone to injure those who by look, word, or touch have of their own act, though not always of their own will, placed themselves in communication or contact with her[401].