organization of the enemy might be?

_Ans_.--Estimate strength by length of time it takes to pass a given
point. Assuming that infantry in column of squads occupies half a yard
per man, cavalry in column of fours 1 yard per trooper, and artillery
in single column 20 yards per gun or caisson, a given point would be
passed in one minute by about: 175 infantry, 110 cavalry at walk, 200
cavalry at trot, 5 guns or caissons.

5. Suppose on patrol and safely concealed for sighting the enemy at no
great distance, by what rough method would you ascertain the
approximate strength of the force assuming it to be composed of
infantry, cavalry and artillery?

See answer No. 4.

6. What is the composition and arrangement of the advance guard?

_Ans_.--All arms of the service. In open country much cavalry and
field artillery, the latter seldom assigned to command smaller than a
brigade. Also machine guns, ambulance company if the force is large
and engineers for purpose of removing obstacles to the march.

Large command; advance cavalry, support, reserve.

Small command; point, advance party, support, reserve.

Strength should be 1/20 to 1/3, depending on size of command and
character of terrain.