Field engineers drill Instrument drill for predictors, Antiaircraft Artillery, Nos.2 and 5 military training pamphlet Barbed wire concertina obstacles : construction drill for the "High Wire " fence field manual Infantry drill regulations / prepared under direction of the Chief of Infantry field manual Cavalry : cavalry drill regulations, horse field manual Crew drill and service of the piece : medium tank M 4 field manual Cavalry drill regulations, mechanized Projector drill for projector rocket 3-inch No.2, Mark I : provisional Instrument drill for haight and range-finder, No.3 training regulations Chemical warfare service / War Department : Drill, the chemical squad, platoon and company (4-inch and 4.2-inch chemical mortar) / War Department Cavalry drill : 1896 Cavalry drill : 1896