Geodaesia : or, The art of surveying and measuring land made easy (1768)
Love, John, fl. 1688, Clark, Samuel · London : Printed for J. Rivington · leaf 99
ke the Plots of Fields. ufe, protractors being made accordingly: for whenyou turn your inftrument to the eaftward, the needlewill hang over the weftward divifion, on the con-trary. As for the ufe of the divifion of the card into fourquadrants, I fhall fpeak largely of by and by;therefore for the… … at which you would take your obfervations.ing placed your femicircle at F, turn it at Hav- it about thenorth Divers Ways to take the Plots of Fields. 77north point of the card from you, till through thefixed fights, (Note, that I call them the fixed fightswhich are on the fixed diameter) you efpy…
Surveying
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