American surveyors sometimes used a longer chain of 100 feet (30.48 m), known as the engineer's chain or Ramsden's chain. The term chain in this case usually refers to the measuring instrument rather than a unit of length; the distances measured with such an instrument are normally measured in feet (and usually decimal fractions of a foot, not inches).
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Famous quotes containing the word chain:
“Oft, in the stilly night, Ere Slumber’s chain has bound me, Fond Memory brings the light Of other days around me.”
—Thomas Moore (1779–1852)