To this end we sent many of them to worlds like yours, where homes were valued, where our races might mingle.

But here in black vacuum-where space is flat and light rays cut straight trails-young races should not readily mingle with other orders.

Ai-lan believed the races could never mingle.

After World War II, Americans enjoyed new prosperity and mobility; races and classes mingled; boom babies were born.

Now, seven years after the end of apartheid, the races are mingling more than ever before.

In time, so it is said, the race will mingle into the ruck and the fairies will be gone.

As a result the lepers were dying, then coming back, and the two races mingled like some obscene parody of incest.

But the races seldom mingle, the family said.

The students, both blacks and whites, caused no problems, but the races did not mingle socially in the school, Ms. Johnson recalled.

No heavy curtain separates blacks from whites in the dining car; now races mingle in club car and diner as if it had never been otherwise.