Geodaesia : or, The art of surveying and measuring land made easy (1768)
Love, John, fl. 1688, Clark, Samuel · London : Printed for J. Rivington · leaf 207
1,670263 Again, As radius the right angle B 10,000000 is to the log. of the line AC 47 1,672098 So is the fine of the angle C 58 9,928420 to the log. height of the tower 40 * ^^ ^QQ gyards I * In this example, the ground is underftood to belevel However, if it be not fo, I will (hew you,N 4 How 184… … your fern {circle in any place of the hill, as at C;then turn it down, and make it ftand horizontal, asbefore directed, the, diameter then pointing tord of the Heights and Dijlances. 185 the tower, turn the moveable index to A, and takethe angle AC^j which let be 19 degrees, 30minutes. Take alfo…
Surveying
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![An illustration from Declaration de l'vsage du graphometre : par la pratique duq[ue]l l'on peut mesurer toutes distances des choses de remarque qui se pourront voir et discerner du lieu ou il sera posé : et po[ur] arpenter terres, bois, prez, & faire plans de villes et forteresses, cartes geographiques, & generalement toutes mesures visibles : et ce sans reigle d'arithmetique (1597)](https://img.insideoutlibrary.com/img/200/ia-declarationdelvs00danf-114-28.webp)
