11.   What should be used to preserve it?

12.   But most lack the strong local management and abundant woodlands that Ixtlan has used to preserve both trees and profits.

13.   Culbertson said he is most concerned about the possibility of broken glass and hazardous materials such as formaldehyde, used to preserve science specimens.

14.   He said a lower debt would free up interest payments that he said should be used to preserve Social Security.

15.   It could also be used to preserve the genetic characteristics of existing animals hundreds of years into the future.

16.   The Pioneer added the autopsy, which will be used as evidence in the court case, had also found traces of formalyne -- used to preserve corpses.

17.   The cigarettes were hidden in tin boxes usually used to preserve cream cheese.