61.   Rather than the strict world of observation that Jane Goodall follows with chimpanzees, Kummer and his colleagues are constantly designing experiments to test their theories.

62.   Researchers have tested this theory by examining various kinds of monkey.

63.   Researchers are asking for this item to test theories with small explosions.

64.   Rosenthal said this stance would test the theory that the union could mobilize for Gore without going negative on Bradley.

65.   Recent voyages to Axial were supposed to test both theories.

66.   Researchers at the University of Missouri wanted to test the theory that the way to make better, shorter business meetings was to take the chairs away.

67.   Scientists testing the theory by tracking subatomic particles emitted by cosmic rays suspected that the meson could not behave that way.

68.   Several studies are under way in an effort to confirm the findings and test the theory that paralyzed legs can also be restored.

69.   She is now directing a genetic study, with the cooperation of male Harlan descendants, to test a theory that Robert and John Harlan were half-brothers.

70.   So for his next project he selected a subject that would test theories of class warfare.