1.   This subject remains a fertile field for additional investigation.

2.   With the honourable exception of this last case, the homogeneously broadened laser has so far proved a fertile field for instability and chaos only for the theorist.

3.   And of course energy is a very fertile field.

4.   And another glimpse was afforded of the fertile field for mischief that pension fund management has become.

5.   And Silicon Valley has become a fertile field for stories about famous young nerds and their favorite gadgets.

6.   And Punjabis are wondering what happened to their peaceful paean to new blossoms and fertile fields.

7.   As these communities grew into towns and cities, they spread out over what had been fertile fields.

8.   BC made its hit by taking talented players out of New Jersey, another fertile recruiting field.

9.   Both sides of the fence here have the same stony hills and fertile fields.

10.   But the state of Florida is such a fertile recruiting field, coaches step into the back yard and pluck athletes like grapefruits off a tree.