Created page with "Quadrant <ref name="term_78529" /> <p> An instrument for taking altitudes, consisting of the graduated arc of a circle of ninety degrees. </p> ==References == <references> <r..."
(Created page with "Quadrant <ref name="term_78529" /> <p> An instrument for taking altitudes, consisting of the graduated arc of a circle of ninety degrees. </p> ==References == <references> <r...")