21.   In National Parks, although the land is privately owned, there are strict controls on the use of the land.

22.   Indeed, that is what all pollution control is about - people paying to live in a cleaner environment.

23.   Joint control is found where the parent companies must agree on Decisions concerning the joint venture company.

24.   Most controls were from lower to mid-middle class, while the cases had a greater spread of social class.

25.   On the Chunky and double knit ribbers, this third control is a lever at the top of the tension dial.

26.   Pollution control is about action in the field and getting results.

27.   Similarly the control of rubella is complex and important, because rubella in pregnancy is a cause of congenital defects.