A treatise on land-surveying; comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the transit, the theodolite, the plane table, &cIllustrated by four hundred engravings, and a magnetic chart . iys. 80. In a case hke that in , five lines will be betterthan six, and -vNill tie one an-other together, then* points ofintersection being CHAP. IV.] Diasronals. Tic-lines and Offsets. 93 Fig 81

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectsurveying, bookyear18