Plumbing details for mobilization buildings in support of war efforts. They include hot water heater connections to range boiler or vertical h.w. storage tank, hot water heater connections for horizontal h.w. storage tank, connections for vertical h.w. generator, gas hot water heater connections for h.w. storage tank, pipe stand for vertical hot water storage tank, method of installing range boilers in battery, schedule for hot water tank connection & accessories, lavatories in battery, wall hung urinal, front elevation through urinal, front elevation service sink, front elevation single or double compartment cement laundry tray, shower & drain, scullery sinks, water service box, cold water supply for pipe protection with shut off valve & drain, front elevation of wash sink, water closet, schedule for pipe covering, and notes.

Copy of Steele's Aid to Pilots: Regulations, a compilation of American civil aviation rules and regulations. Nearly all aspects of flying are covered, including reporting and record keeping, pilot ratings, aircraft identification, air traffic control, equipment, instruments, lights, flight patterns, and weather, as well as a question and answer section.