Using an Abney Level to Measure Relative Heights 1) Introduction An Abney level is a small surveying instrument that consists of a sighting tube and a spirit level linked to a protractor and this allows angles and slopes

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Date: 2015-12-06 07:12:55		Using an Abney Level to Measure Relative Heights 1) Introduction An Abney level is a small surveying instrument that consists of a sighting tube and a spirit level linked to a protractor and this allows angles and slopes Add to Reading List Source URL: www.hill-bagging.co.uk Download Document from Source Website File Size: 269,49 KB Share Document on Facebook