technical regulations Fortification : camouflage for all arms / prepared under direction of the Chief of Engineers Military engineering : Demolitions and mining / Army Council Military engineering : Accommodation / Army Council military training pamphlet Field engineering (all arms) : Booby traps Military engineering : Lithographic proving / Army Council army regulations. military school Engineer school / War Department Training regulations. Corps of engineers : Mechanics of bridge design and strength of materials Military engineering : Water supply / Army Council Permits for work in navigable waters / Corps of engineers ; Department of the army war department technical manual Engineer maintenance troops war department technical manual Standard stream crossing equipment / prepared under direction of the Chief of Engineers field manual Camouflage / Prepared under direction of the chief of engineers