11.   Bob Wagner, of the Greenwich park system, found that methods such as shaking the eggs as a form of birth control were not successful either.

12.   A calamity threatens Yellowstone, the crown jewel of the American park system.

13.   After leaving baseball, he was a supervisor in the Chicago parks system.

14.   Also in the House, a bill to the review the park system for possible land transfers or closures is being considered.

15.   But the problem facing Essex County and every other park system is enforcement.

16.   By slashing the budgets of the Interior Department and its agencies, critics are trying to dismantle the parks system and gut the Endangered Species Act, he said.

17.   Crane retorted that Golden Gate is the most visited locale in the entire park system.

18.   Department officials say they are trying to tread a difficult path to protect wildlife, the park system, the rights of American Indians and religious freedom.

19.   Each guide covers a specific area of the park system.

20.   Events are often held in urban areas with good park systems like Seattle and New York City.