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12 Chains Acres alſo Anſwer Baſe becauſe beſt C H A caſt cauſe Chains oo Links Circle Circumferentor Co-fine Co-tang Compaſſes croſs Degrees deſcribe the Arch deſire Diameter divide Diviſion draw a Line draw the Line Eaſting equal eſpy faſt Feet Field Field-Book Figure firſt Station given Hedge Houſe Hypothenuſe Index Inſtrument Interſe&tion juſt Land laſt Laſtly length leſs leſſer Line A B Logarithm Mark meaſure the diſtance moſt multiplied muſt neareſt Needle Obſervations Off-ſet oo Links P R O Parallelogram Perches Perpendicular pleaſe Produćt Protraćtor Quotient reſt right againſt Right-Angled Roods ſame ſay Scale ſecond ſee ſeek Semi-circle ſetting one Foot ſeveral ſhall ſhew ſhould ſide Sine ſmall ſome ſort Square ſtand ſtick ſtreight Line ſtretch ſuch ſuppoſe ſure Table take the Plot Tangent thereof theſe thoſe Trapezia Triangle uſe Weſting whoſe
Page 54 - Inftruments for the taking of an , Angle in the Field. There are but two material things (towards the meafuring of a piece of Land ) to be done in the Field ; the one is to meafure the Lines ( which I have...
Page 60 - Lines or not, if you can write ftreight, and in good order, the Figures directly one under another. For this I leave you chiefly to your own fancy ; for I believe there are not two Surveyors in England, that have exactly the fame Method for their Field Notes. Of the Scale.
Page 154 - All Circles are in proportion ,to one another as the Squares of their Diameters ; therefore, if you divide the Square of the Diameter or Semidiameter, and extract the Root, you wit!
Page 52 - Inches : The Defcription of which Chain, and how to reduce it into any other Meafure, you have at large in the foregoing Chapter of Meafure. In this place I fhall only give you fome few Directions for the Ufe of it in meafuring Lines. Take care that they who carry the Chain deviate not from a ftrait Line ; which you may do by ftanding at your Inftrument, and looking thro...