sentences:  Ferber did not attend Chanute's lecture to the Aero Club de France in April 1903, but after hearing of it he wrote to Ernest Archdeacon, one of the founder members of the Aero Club.His letter asked Archdeacon to use his influence to get the Aero Club to announce a prize for a glider flight, and contained the exhortation ("The aeroplane must not be allowed to reach successful achievement in America").His suggestion was enthusiastically endorsed by Archdeacon, who included an extract from Ferber's letter in his account of Chanute's lecture published in "La Locomotion" on 11 April