Elements of military sketching and map reading (1917)
Barnes, John Bryson, 1876- · New York : D. Van Nostrand · leaf 28
SOME SKETCHING INSTRUMENTS 19 in windy weather. The Service Clinometer is a simpleand handy angle measuring instrument, and should beused when available.A 6-inch triangular ruler makes a good straightedge … Fig. 8. for sighting or for drawing lines. The scales may bepasted on it. Box Compass (Fig. 9).—A simple box, or needlecompass is preferable for the beginner. The gradua-tions may be clockwise from 0° to 360°, contra-clock-wise 360° to 0°, in quadrants or half circles. A com-pass graduated…
Military topography · Maps, Military
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
