The Art of Land Measuring Explained ... with an Appendix Concerning Instruments

alſo altitude angle of elevation Anſwer arch bafe baſe becauſe brafs braſs breadth centre chain chord circle circumference cloſe degree diagonal Diff dimenfions dividing line divifions eaſily ellipfis Engliſh Enneagon equal exactneſs EXAMPLE fame fcale fecond feveral fhall fhare fide field figure find the area find the content firft firſt draught focal diſtance fome fquare fquare root fubtract fuch fuppofe fure furvey gonal graphometer greateſt ground half inacceffible inch inftrument interfection join laft laſt leſs limb long diameter meaſure Middle Park moſt multiply muſt neceffary Nonius obferve Off-fets perpendicular plain table Plate pole polygon PROB propoſed purpoſe quadrant quotient radius raiſe regular polygon rhombus right line right lines parallel right-lined roods RULE ſcale ſector ſeveral ſhall ſhare ſhort ſhould ſmall ſome ſquare ſtation ſtraight take the angle tangent thefe theodolite theſe thro trapezium triangle uſe whole whoſe