10723. Motion pictures in medicine: Bureau of Commercial Economics motion picture outfit on the White House elipse
10724. Motion pictures in medicine: Bureau of Commercial Economics motion picture outfit in front of the Washington Monument
10725. Motion pictures in medicine: Bureau of Commercial Economics motion picture outfit on the White House elipse
10726. Motion pictures in medicine: Bureau of Commercial Economics motion picture outfit on the White House elipse
10727. Motion pictures in medicine: Bureau of Commercial Economics motion picture outfit on the White House elipse
10728. Motion pictures in medicine: Filming of an operation for the repair of a hernia at Walter Reed Hospital
10730. Airplane ambulance: Scott Field, Belleville, Illinois - airplane ambulance placed in service, September 14, 1918, showing litter