Boussingault versus ville: The social,political and scientific aspects of their disputes

A feature of mid-nineteenth century scientific debates in France on the subject of plant nutrition was the rivalry, at times acrimonious, between Jean Baptiste Boussingault and Georges Ville. It started in 1848 when Ville was demonstrator to Boussingault, who held one of the two chairs of agriculture at the Conservatoire des Arts et Métiers. A study of their disputes serves to illustrate their mutual incompatibility, exacerbated by the patronage extended to Ville by his step-brother, Louis Napoléon Bonaparte, afterwards Napoléon III. Their disputes were not merely the result of personal differences but also accompanied the development of two concepts of plant nutrition, namely the rôle of atmospheric nitrogen. and its possible assimilation by plants, and the chemical nature of plant nutrients, especially nitrates and phosphates.