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land using the simple tools of the time, a rod with cord carrying knots at certain intervals, waxed and resined against wet weather." Benese described the measure of an acre in terms of a perch:The practice of using surveyor's chains, and perch-length rods made into a detachable stiff chain, came about a century later when iron was a more plentiful and common material. A chain is a larger unit of length measuring 66 ft 4 lk=on,

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