11.   Readers may want to check Web sites since some policies were still evolving at press time.

12.   Since then, the P.I.s have evolved at a remarkable pace.

13.   The new science of biotechnology, meanwhile, was evolving at a rapid pace.

14.   The other set of genes is special to the worm and seems to be evolving at a much brisker pace.

15.   The trail seems to pass through several ecospheres as the scenery evolves at every turn.

16.   These are sudden and radical changes for an eccentric company that has evolved at a glacial pace.

17.   They are evolving at a time when more and more consumers are turning to the Internet for their shopping needs.

18.   But, to facilitate more teamwork and co-operation on work which continues to develop and evolve at every stage, video-conferencing facilities are needed.