41. Returning as a three-year-old he won the Poule d'Essai des Poulains at Longchamp. 42. He led the Centre d'Essai de Recherche et de Formation ( CERF ) from 1929 to 1974. 43. "Essai " is considered the first complete treatise on economics, with numerous contributions to the science. 44. Several winners of the modern Prix de la Grotte have achieved victory in the Poule d'Essai des Pouliches. 45. The event was rescheduled to take place on the eve of the Poule d'Essai des Poulains in 1961. 46. It was taken up in France after the translation in " Essai sur les hi�roglyphes des �gyptiens ". 47. The notes to " Essai " itself discussed the views of Warburton and Samuel Shuckford on Chinese characters. 48. The leading horses from the Poule d'Essai des Pouliches sometimes go on to compete in the Prix de Diane. 49. The Poule d'Essai des Poulains is France's equivalent of the Longchamp is closed for redevelopment during 2016. 50. The leading horses from the Poule d'Essai des Poulains sometimes go on to compete in the Prix du Jockey Club.
