Works and Days Hesiod translated by Hugh G. Evelyn-White http://www.sacred-texts.com/cla/hesiod/works.htm Following is segment in which Hesiod explains how to use the constellations to decide when to harvest or travel: ... (ll. 597-608) Set your slaves to winnow Demeter's holy grain, when strong Orion first appears, on a smooth threshing-floor in an airy place. Then measure it and store it in jars. And so soon as you have safely stored all your stuff indoors, I bid you put your bondman out of doors and look out for a servant-girl with no children; -- for a servant with a child to nurse is troublesome. And look after the dog with jagged teeth; do not grudge him his food, or some time the Day-sleeper may take your stuff. Bring in fodder and litter so as to have enough for your oxen and mules. After that, let your men rest their poor knees and unyoke your pair of oxen. (ll. 609-617) But when Orion and Sirius are come into mid-heaven, and rosy-fingered Dawn sees Arcturus (30), then cut off all the grape-clusters, Perses, and bring them home. Show them to the sun ten days and ten nights: then cover them over for five, and on the sixth day draw off into vessels the gifts of joyful Dionysus. But when the Pleiades and Hyades and strong Orion begin to set, then remember to plough in season: and so the completed year will fitly pass beneath the earth. (ll. 618-640) But if desire for uncomfortable sea-faring seize you; when the Pleiades plunge into the misty sea to escape Orion's rude strength, then truly gales of all kinds rage. Then keep ships no longer on the sparkling sea, but bethink you to till the land as I bid you. Haul up your ship upon the land and pack it closely with stones all round to keep off the power of the winds which blow damply, and draw out the bilge-plug so that the rain of heaven may not rot it. Put away all the tackle and fittings in your house, and stow the wings of the sea-going ship neatly, and hang up the well-shaped rudder over the smoke. You yourself wait until the season for sailing is come, and then haul your swift ship down to the sea and stow a convenient cargo in it, so that you may bring home profit, even as your father and mine, foolish Perses, used to sail on shipboard because he lacked sufficient livelihood. And one day he came to this very place crossing over a great stretch of sea; he left Aeolian Cyme and fled, not from riches and substance, but from wretched poverty which Zeus lays upon men, and he settled near Helicon in a miserable hamlet, Ascra, which is bad in winter, sultry in summer, and good at no time. ..