 During the same period, he actively participated in the work of the Bordeaux Academy of Sciences, as well as the Academy of Painting and Sculpture, of which he was president.De Ladebat distinguished himself through his writings on finance, political economy, and the improvement of living conditions.He is especially noted for his 1788 work "Discourse on the Necessity and the Means of Abolishing Slavery in the Colonies" which would be published in Bordeaux and read several years later in a session of the Legislative Assembly, and would be drawn upon by the "Societé des amis des noirs" (Society of Friends of Blacks) with which be became associated.