"If you make a mistake it's useful for the others. Of course you try not to-or at least make a new one."

"Some of the old ones aren't so realistic," her other self puts in. "Things were so different, I guess. We make excerpts of the parts we like best. And practical things, like Judys should watch out for skin cancer."

"But we have to read the whole thing every ten years," says the Judy called Dakar. "It's inspiring. As you get older you understand some of the ones you didn't before."

Bemused, Lorimer tries to think how it would be, hearing the voices of three hundred years of Orren Lorimers. Lorimers who were mathematicians or plumbers or artists or bums or criminals, maybe. The continuing exploration and completion of self. And a dozen living doubles; aged Lorimers, infant Lorimers. And other Lorimers' women and children… would he enjoy it or resent it? He doesn't know.

"Have you made your records yet?"

"Oh, we're too young. Just notes in case of accident."

"Will we be in them?"

"You can say!" They laugh merrily, then sober. "Truly you won't tell?" Judy Paris asks. "Lady Blue, we have to let her know what we did. Oof. But truly;,' you won't tell your friends?" '

He hadn't told on them, he thinks now, emerging. back into his living self. Connie beside him is drinking cider from a bulb. He has a drink in his hand too, he 4' finds. But he hasn't told.

"Judys will talk." Connie shakes her head, smiling. Lorimer realizes he must have gabbled out the whole thing.

"It doesn't matter," he tells her. "I would have guessed soon anyhow. There were too many clues. Woolagongs invent, Mydas worry, Jans are brains, Billy Dees work so hard. I picked up six different stories of hydroelectric stations that were built or improved or are being run by one Lala Singh. Your whole s way of life. I'm more interested in this sort of thing than a respectable physicist should be," he says wryly."You're all clones, aren't you? Every one of you. What do Connies do?"

"You really do know." She gazes at him like a mother whose child has done something troublesome and bright. "Whew! Oh, well, Connies farm like mad,; we grow things. Most of our names are plants. I'm Veronica, by the way. And of course the cr6ches, that's hour weakness. The runt mania. We tend to focus on anything smaller or weak."

Her warm eyes focus on Lorimer, who draws back involuntarily.

"We control it." She gives a hearty chuckle. "We aren't all that way. There's been engineering Connies, and we have two young sisters who love metallurgy. It's fascinating what the genotype can 'do if you try. The original Constantia Morelos was a chemist, she weighed ninety pounds and never saw a farm in her life." Connie looks down at her own muscular arms. "She was killed by the crazies, she fought with weapons. It's so hard to understand… And I had a sister Timothy who made dynamite and dug two canals and she wasn't even an andy."

"An andy," he says.

"Oh, dear."

"I guessed that too. Early androgen treatments."

She nods hesitantly. "Yes. We needed the muscle power for some jobs. A few. Kays are quite strong anyway. Whew!" She suddenly stretches her back, wriggles as if she'd been cramped. "Oh, I'm glad you know. It's been such a strain. We couldn't even sing."

"Why not?"

"Myda was sure we'd make mistakes, all the words we'd have to change. We sing a lot." She softly hums a bar or two.

"What kinds of songs do you sing?"

"Oh, every kind. Adventure songs, work songs, mothering songs, roaming songs, mood songs, trouble songs, joke songs-everything."

"What about love songs?" he ventures. "Do you still have, well, love?"

"Of course, how could people not love?" But she looks at him doubtfully. "The love stories I've heard from your time are so, I don't know, so weird. Grim and pluggy. It doesn't seem like love… Oh, yes, we have famous love songs. Some of them are partly sad too. Like Tamil and Alcmene O, they're fated together. Connies are fated too, a little." She grins bashfully. "We love to be with Ingrid Anders. It's more one sided. I hope there'll be an Ingrid on my next hitch…; She's so exciting, she's like a little diamond."

Implications are exploding all about him, sparkling with questions. But Lorimer wants to complete the' darker pattern beyond.

"Eleven thousand genotypes, two million. people: that averages two hundred of each of you alive now." She nods. "I suppose it varies? There's more of some?"

"Yes, some types aren't as viable. But we haven't lost any since early days. They tried to preserve all the genes they could. We have people from all the major races and a lot of small strains. Like me, I'm the Carib Blend. Of course we'll never know what was', lost. But eleven thousand is a lot, really. We all try to know every one, it's a life bobby."

A chill penetrates his ataraxia. Eleven thousand, j period. That is the true population of Earth now. He thinks of two hundred tall olive skinned women named after plants, excited by two hundred little bright Ingrids; two hundred talkative Judys, two hundred self possessed Lady Blues, two hundred Margos and Mydas and the rest. He shivers. The heirs, the happy pallbearers of the human race.

"So evolution ends," he says somberly.

"No, why? It's just slowed down. We do everything much slower than you did, I think. We like to experience things fully. We have time." She stretches again, smiling. "There's all the time."

"But you have no new genotypes. It is the end."

"Oh but there are, now. Last century they worked j out the way to make haploid nuclei combine. We can make a stripped egg cell function like pollen," she says, proudly. "I mean sperm. It's tricky, some don't come out too well. But now we're finding both Xs viable we have over a hundred new types started. Of course. it's hard for them, with no sisters. The donors try to help." Over a hundred, he thinks. Well. Maybe… But "both Xs viable." What does that mean? She must be referring to the epidemic. He had figured it primarily affected the men. His mind goes happily to work on. The new puzzle, ignoring a sound from somewhere that is trying to pierce his calm.

"It was a gene or genes on the X chromosome that was injured," he guessed aloud. "Not the Y. And the lethal trait had to be recessive, right? Thus there would have been no births at all for a time, until some men recovered or were isolated long enough to manufacture undamaged X-bearing gametes. But women carry their lifetime supply of ova, they could never regenerate reproductively. When they mated with the recovered males only female babies would be produced, since the female carries two Xs and the mother's defective gene would be compensated by a normal X from _ the father. But the male is XY, he receives only the mother's defective X. Thus the lethal defect would be expressed, the male fetus would be finished… A planet of girls and dying men. The few odd viables died off."

"You truly do understand," she says admiringly.

The sound is becoming urgent; he refuses to hear it, there is significance here.

"So we'll be perfectly all right on Earth. No problem. In theory we can marry again and have families, daughters anyway."

"Yes," she says. "In theory."

The sound suddenly broaches his defenses, becomes the loud voice of Bud Geirr raised in song. He sounds plain drunk now. It seems to be coming from the main garden pod, the one they use to grow vegetables, not sanitation. Lorimer feels the dread alive again, rising closer. Dave ought to keep an eye on him. But Dave seems to have vanished too; he recalls seeing him go toward Control with Lady Blue.

"OH, THE SUN SHINES BRIGHT ON PRET-TY RED WI-I-ING," carols Bud.

Something should be done, Lorimer decides painfully. He stirs; it is an effort.

"Don't worry," Connie says. "Andy's with them."