11.   Hardly a stance one would expect from the meeting of the rarefied worlds of couture and museums, yet the times have made such a position necessary.

12.   He majored in botany at Yale and entered the rarefied world of corn breeding as a graduate student at Cornell.

13.   Her first book was about the theories of psychology that developed in this rarefied world.

14.   Hers was a rarefied world.

15.   If the theme does seem rather un-Berkshire-like out in the rarefied world of Tanglewood, well, so what?

16.   In the rarefied world of old wines, it is.

17.   Is the rarefied world of Asian art moving into the mainstream?

18.   It is still the place to experience a rarefied world.

19.   Not only did he come from the rarefied world of supercomputing, but his original charter at Microsoft was to lead the company into the world of consumer electronics.

20.   Rowlett came to the rarefied world of cryptology without practical experience.