21.   But the typical level found in field studies was much lower.

22.   Even many years later, he used a cane to get around, but he kept up his field studies.

23.   He also said a wide range of field studies could be pursued to try to detect antipodal clues.

24.   He and other infectious disease experts have been trying for several years to promote more field studies of disease patterns and better surveillance of new outbreaks.

25.   Like an anthropologist, he began a field study of the locals with an eye toward turning their world into fiction.

26.   Members are developing geographic imaging software that will let researchers analyze the data collected during three years of field studies and use it to develop conservation plans.

27.   My field study took place in New York, where wirelessness has its own advantages and drawbacks.

28.   -Texas Tech scientists completed field studies of a fungus that kills the ants inside their mounds.

29.   The book, based on her field studies in remote southeastern Arizona, examines ant behavior and how colonies function and expand without any central control.

30.   The delegation recommended that the ministry of health await the results of an ambitious Italian field study before making any decisions.