Complete Treatise on the Mensuration of Timber: Containing, Besides All the Rules Usually Given on the Subject, Some New & Interesting Improvements; Particularly the New, Expeditious and Very Accurate Method of Calculating the Contents of Square & Round Timber: with the Description of the Sliding Rule and Gunther's Scale, So Far as They Relate to this Art
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18 feet 21 feet 9 inches againſt alſo Anſwer baſe bers body breadth breadth and thickneſs circle column common Common method contains cube root cubick feet cyphers decimal fraction diameter difference divided dividend diviſions Duodecimally equal Error EXAMPLE Extend the compaſſes extent will reach feet long feet the content feet the length fide figures firſt folid content foot foot in length fourth gallons girt give given number Gunter's ſcale half hundred inches broad integer laſt leaſt lefſer left hand mean girt mean proportional meaſure middle Multiply muſt operation piece pipe places practice PROBLEM quarter girt Queſt quotient Reduce remainder ſame Scale ſcantling ſecond ſide Sliding rule ſolid square ſquare root ſtands ſuch ſum superficial content tapering thick third thoſe timber True content True method twice uſe whoſe