explanation and demonstration of sanitary appliances used in the field included: training aids; (actual appliances in operation constructed from salvage material), water storage basin, lister bag and soakage pit, water heating unit, vapor burner, flash burner, shower, washing platform, hand laundry, barrel washer, mess gear pre-sterilization, heating units, kitchen fly, kitchen tables, serving table, garbage stand, fly traps mess gear washer, garbage pit, underground cooling box, suspended food box, barrel incinerator, garbage strainer, log can inclined plane incinerator, barrel inclined plane incinerator, ash barrel grease trap, barrel baffle grease trap, box baffle grease trap, soakage pit, soakage trench, hand washer, straddle trenches, latrine box, pail latrine, trough urinal, squatter box, pipe urinal, square trough urinal, pedal hand washer, feces burner.