Aviators Elinor Smith and Lady Heath try a balance testing machine.
SLATE INFORMATION: Airwomen try the Orientator. Lady Heath has a whirl in a balance-testing machine
Various of Lady Heath (Lady Mary Heath) (Aviator) inside balance-testing machine - being turned upside down and spun about
SLATE INFORMATION: Elinor Smith, women's endurance record-holder follows.
Elinor Smith (Aviator) riding inside balance-testing machine
Two women laughing
Background: Aviators Elinor Smith and Lady Heath try a balance testing machine.