to continue the march, this should be
          done in broken detachments, which are far less distinct
          than continuous column.
      (c) Troops in a trench should crouch down in the shadowy side
          and remain motionless.
      (d) Faces should never be turned up, as the high lights on
          cheek-bones and foreheads then show up distinctly.
      (e) Bright metal on arms, equipment and headgear must be kept
          covered.
   2.  Artillery wagon-trains, etc., should if possible be halted
          promptly on warning.  When halted, their neutral coloring
          protects them.
   3.  Trenches are best concealed: 
      (a) By avoiding, in construction, a too regular outline, and
          following as far as possible the contours of the ground.
      (b) By coloring the parapet and parados to match the ground. 
          This may be done most quickly by painted canvas; if the
          latter is not available, by planting or strewing the loose
          earth with surrounding herbage.  In this work care must be
          taken not to make the covering itself too conspicuous by
          brightness or monotony of coloring.
      (c) By covering the trench itself, where convenient, with a thin
          material, colored like the parapet and parados.
      (d) By avoiding all overt movement of troops in the trenches
          under observation.
   4.  Buildings, e.g., ammunition dumps, hangars, etc., can be
          completely concealed by being painted the color of the
          ground they stand on and fitted with canvas curtains,
          similarly painted and stretched from the eaves to the
          ground at a horizontal angle of 35 degrees.  These curtains
          completely eliminate shadows.
   5.  Success in each work of concealment by camouflage is best
          assured by the assistance of an aeroplane observer to test
          and correct it.

* * * * *

Orders Governing Intrenchment Problems at Second Plattsburg Training
Camp.

HEADQUARTERS PLATTSBURG TRAINING CAMP,
PLATTSBURG BARRACKS, NEW YORK. 
SEPTEMBER 22, 1917.

DIVISIONAL ENTRENCHING PROBLEM.

General Situation: 

The Salmon river forms the boundary line between two states, the “Blue” on the north and the “Red” on the south.  War has been declared and the Red Army is mobilizing near Keeseville.  Mobilization by the first Blue Army at Plattsburg has been completed.

Special Situation, Blue: 

Our advanced troops are holding the line of the Salmon river against strong detachments of the Red Army.  The commanding general of the Blue Army has decided to establish a second position on the line, Bluff Point to the bend (248) in the Saranac river.

The following order is issued by the Division Commander: