Geodaesia : or, The art of surveying and measuring land made easy (1768)
Love, John, fl. 1688, Clark, Samuel · London : Printed for J. Rivington · leaf 152
the beginning of thisbook. Tojind the content of a circle y or any portion thereof* To find the content of the whole circle, it is con-venient, that firft you know the diameter and cir-cumference thereof 5 one of which being known, the of a Plot of Land. 129 and the other is eafily found ; for as 7… … and the product divided by 7, gives 6 chains, 28links, and fomething more for the circumference.Now, to know the fuperficial content, multiply halfthe circumference by half the diameter, the productwill be the content; half the circumference is 3chains, 14 links; half the diameter, I chain, olinks:…
Surveying
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-187-104.webp)
