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A School Course in Surveying

Published online by Cambridge University Press:  03 November 2016

Extract

The Course described here has been evolved at Northallerton Grammar School during the past nine years. The field-work and plan-drawing are done during Geography lessons, while the calculation of area, height finding and resection are undertaken by the mathematics classes. Many mathematical ideas are involved throughout the Course, which acts as a connecting link between the two subjects. The ages given are only approximate.

Type
Research Article
Copyright
Copyright © Mathematical Association 1921 

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References

page 357 note * The table can also be oriented by a compass. A magnetic meridian is drawn when the table is in position at A. At any other position it is oriented by rotating until the compass needle corresponds with this meridian. This is perhaps a more accurate method for extended surveys.

page 357 note † This method was described by Capt. Morrison-Scott, U.M., in the Journal of the Royal Artillery, Aug. 1917.

page 358 note * During the late war the Royal Engineers used this method for resecting battery positions and other work requiring considerable accuracy.

page 358 note † There is a case of failure by both methods when A, B, C, O or a, b, c, p are concyclic.