Joseph-Jérôme Lefrançois de LALANDE (1732-1807). L.S., Collège de France 19 vendémiaire, to his colleagues of the Classe de la langue et de la littérature française; 1 page and a quarter in-4. The astronomer asks his colleagues to rule on a pronunciation problem: "the word vent is pronounced as vant & we don't know if our colleague Ventenat is called Vintenat or Vantenat. Couldn't you announce that you would write with a what is pronounced as a. The example would serve as an authority"...