Grieves, Loren C. (Loren Chester), b. 1878 · Washington, United States Infantry Association · leaf 64
To determine the visibility of a point by observation. 2. To determine the visibility of a point by proportion. 3. To determine the visibiUty of a point by the profilemethod. 4. To determine the visible portion of a straight line bythe profile method, the point of observation being in the… … ■ ■ ^ ^ ■■• ■ ^ ^ /^\^_^ ^^^-^ ^nT^^^--^ %?s>—=:r i=l -^ Z^ -—-Z ■ ^^^J^^s\. ::^N^^v\oO* ^^$$^$^.?^\ ^^^:^^^^ ^ o^°5-,°\ \ yvj )^ ^^)/JJ)/y^i^ ^^^^yw///y^ x^y^/ 11 // /y y^// //// —^yJJ/y/ -ii^^v/V// ^^^^^V/V/ =^^^^^^^^$-^^/x; - <:::^^-^^^<:^/ <?^^:^^o^ Vy^^^^^^^^ C<^X y X j/0»^A /…
Maps, Military · Military topography
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