Essais élémentaires sur la botanique, fifth volume of Rousseau's collected works under the title "Mélanges", the title page
Rousseau, Jean-Jacques, 1712-1778. Essais élémentaires sur la botanique, dans Mélanges. A Londres [i.e. Paris? : s.n.], 1782. Six volumes.
In 1771, Madeleine Catherine Delessert initiated a three-year correspondence with Jean-Jacques Rousseau, inquiring as to the proper way to educate her daughter Madelon, aged four, in botany. After Rousseau’s death in 1778, these letters appeared in collected editions of his work.
