sentences:  Their first liquid-fuel motor test took place near the Devil's Gate Dam in the Arroyo Seco on Halloween 1936.Parsons's biographer John Carter described the layout of the contraption as showing
  
  Three attempts to fire the rocket failed; on the fourth the oxygen line accidentally ignited and perilously billowed fire at the Group, but they viewed this experience as formative.They continued their experiments throughout the last quarter of 1936; after the final test was successfully completed in January 1937 von Kármán agreed that they could perform future experiments at an exclusive rocket testing facility on campus.