A breakdown of the LC-modified classification system of the "U" section of the Morris Swett Library.

Includes index.

U: Military science (General) --UA: Armies: organization, distribution, etc. -- UB: Military administration -- UC: Maintenance and transportation -- UD: Infantry: UD 500 - Armor -- UE: Cavalry -- UF: Artillery -- UG: Military engineering -- UH: Aviation -- UJ: Signal communication -- UK: Chemical warfare -- UL: Ordnance and gunnery -- UM: Medical and sanitation -- UZ: "Minor" services -- Index of schedule.