 How often do Bachus vines mature and what is the significance of that timeline?
[Transcriber's Note: This etext was produced from Worlds of If Science Fiction, September 1962. "When I first came here, the Manpower Utilization Directorate, Division of Libraries and Education was a shambles. Frankly, I question the wisdom of placing you in charge of such a sensitive desk, even for two weeks. "I see they're sending two thousand students to d'Land," Retief said, glancing at the Memo for Record. "The Bogans have launched no less than four military campaigns in the last two decades. Now, perhaps, we shall see them breaking that precedent and entering into the cultural life of the Galaxy." "Breaking and entering," Retief said. "Academic details are the affair of the students and their professors," Magnan said. "Our function is merely to bring them together. And remember: here at Corps HQ, all eyes are upon you." A tall broad man with bronze skin and gray hair, wearing tight trousers of heavy cloth, a loose shirt open at the neck and a short jacket, stepped into the room. The wine crop is just about ready. Now I don't know if you're familiar with the Bacchus vines we grow...?" "Only mature every twelve years. In between, the vines don't need a lot of attention, so our time's mostly our own. We've turned all the land area we've got into parks and farms. We've got long seasons back home. Five of 'em. Our year's about eighteen Terry months. Blue-black sky, stars visible all day. Lots of skiing, bob-sledding, ice skating; and it's the season for woodworkers. That's the music-writing season. You have the music and the surf and the bonfires and stars—we're close to the center of a globular cluster, you know...." Autumn's our harvest season. Fruit, grain, that kind of thing; getting it in doesn't take long. This is Wine Year." "Our wine crop is our big money crop," he said. But this year...." Course, I'm only twenty-eight; I can't remember but two other harvests. Retief picked one up, sniffed the deep rust-colored fluid, tasted it, then took a healthy swallow. It tastes like salted pecans, with an undercurrent of crusted port." Retief put aside his cigar, pulled the wires loose, nudged the cork, caught it as it popped up.
 Every 12 years a vintage is held, which also serves as a cultural festival that encourage young people to procreate.
 Every 18 years a vintage is held, which is a kind of celebration of art.  Every 12 years a vintage is held, which also serves as a cultural festival that encourage young people to procreate.  Every 18 years a vintage is held, which serves as a kind of celebration of life for both young and old people.  Every 12 years a vintage is held, wherein the young people are made to harvest all the grapes.