Training regulations. Bridges : Approaches, abutmens, and piers Army extension courses. Common subcourse : Crimes Army extension courses. Common subcourse : Pretrial investigation. - Action upon charges Army extension courses. Common subcourse : Prisoners of war (punishmenst, escape, conduct of trials, paroles) training regulations Machine gun / War Department training manual Carpentry for military specialists : Instructor's guide / United States Army Description and instructions for the use of 3-inch stokes trench mortar Mark I and shell, Mark I technical regulations Fortification : camouflage for artillery / prepared under direction of the Chief of Engineers technical regulations Fortification : explosives and demolitions / prepared under direction of the Chief of Engineers technical regulations Fortification : principles of field fortification / prepared under direction of the Chief of Engineers technical regulations Fortification : proctected shelters / prepared under direction of the Chief of Engineers technical regulations Fortification : standard types and execution of field fortifications / prepared under direction of the Chief of Engineers