SCIENCE and MEDICINE. 36 letters or documents, mostly L.A.S. Louis Brion de la Tour (1803), François Broussais (6 autograph consultations, 2 of which in poor condition; 3 requests for consultations addressed to Broussais by colleagues), Jean de Charpentier (1850), Charles Davillier (to Elisée Reclus, 1875), Édouard Dulaurier (1851), Ed. Ersler (Copenhagen 1879), Hervé Faye (12 to Ch. Jourdain, 1854-1877), Eugène Flachat (1843), Antoine Jobert de Lamballe (1850), Edme Jomard (on Monge's monument in Beaune, 1846), David Kaltbrunner (Zurich 1878), David Ferdinand Koreff (to Mme de Boufflers), Jean-Philibert Maret (1748), Élisée Reclus (1899), Henri Roger (carte de vis.), abbé Alfred Roussel (contract for his Légendes morales de l'Inde ancienne, 1899), Arnold Van Gennep (to the Seignolle brothers, 1936), Alexandre Vassilief (Leipzig 1896)... A file on the manufacture of potato starch (1817-1821) is enclosed.