3. Faulty installation will be left in place as dummy work and be begun over again at another point with the necessary prudence. (_b_) _Tracks._ 1. Tracks must be as few as possible and have a natural appearance. It is best to avoid all tracks by building the position on roads already in existence. 2. Provide fixed access for everybody. If necessary, stake the paths out by means of wire. 3. Extend indispensable tracks beyond the position as far as the dummy work. 4. Use furrows as paths, do not go across fields. 5. Do not dump materials in the immediate neighborhood of the position. (_c_) _Color of the Camouflage._ 1. Harmonize the color of the camouflage with the terrain. Green camouflage in meadows, brown in ploughed fields, white in quarries. 2. The upper surface of the camouflage will be alternate light and dark tones; grass, reeds, hay, or branches fixed in iron wire, etc. 3. Renew the camouflage in proper time; the grass and branches fade quickly and appear light and not dark on the photographs. 4. The position must not extend partly over one field and partly over another, as two fields are seldom of the same color. The furrows will be reproduced in the camouflage. 5. Camouflage materials, such as the sod removed and small trees, will be taken at a distance of at least three to four hundred meters from the position; place a dummy work at a sufficient distance in order that it does not reveal the true position. (_d_) _Forms of Camouflage._ 1. Do not raise the height of the camouflage needlessly; the higher it is the more shadow it throws. Raise it by means of posts during the work; bring it down by day and lay it flat if possible; cover mainly the entries and exits. 2. Do not make a heap of the earth removed but scatter it immediately. 3. There must be no fresh cuts visible, as marked contrasts result from it between the light and dark surfaces, the latter appearing as deep shadows on the ground. 4. Avoid regular shapes and rectangular outlines. 5. Do not change natural shapes. Positions in fills and embankments must not change the form of the fill or embankment. 6. Use the roads, fills, embankments, slopes, sunken roads, edges of woods to greater extent. Deceive the enemy by false tracks ending in woods. II. MAIN INSTRUCTIONS FOR COLUMNS. (_a_) Resting columns, location, and nature of halting-places. The most important thing is that the halting-places be of irregular form.