Grieves, Loren C. (Loren Chester), b. 1878 · Washington, United States Infantry Association · leaf 28
Fig. 4 on the dial, determine a point on it midway between thehour hand and twelve oclock. A line through this pointand the pivot of the hands will be approximately in thetrue meridian. (See Fig. 5.) The operation of pointing the hour hand directly underthe sun is made^easy by easting^the_shadow of… … Fig. 5 straight stick across the face of the watch and then bring-ing the hour hand into this shadow. The watch method will not answer during certain sea-sons in the tropics when the sun passes directly overhead. 22 Mtlitart Sketching There is also another slight error due to the fact that insome…
Maps, Military · Military topography
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