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35 to 39 of 227 glossary terms
circumferentor: form of surveying compass with fixed sights, where bearings are read from the position of a magnetic compass, see also article on the theodolite.
climates: division into latitude zones of the part of the earth known to ancient geographers, used by Ptolemy.
clinometer: an instrument for measuring inclination.
common hours: system of hour reckoning, see article on time and date.
compass: instrument indicating directions by a magnetic needle, see article on compass.
