Recherches sur les effets de la saignée dans quelques maladies inflammatoires, et sur l’action de l’émétique et des vésicatoires dans la pneumonie.

Louis refuted Broussais’s system of medicine, his “médicine physiologique.”  Louis was instrumental in establishing medicine as an exact science by the introduction of the numerical or statistical method. English translation by C. G. Putnam, with preface and appendix by James Jackson as Researches on the effects of bloodletting in some inflammatory diseases, Boston, 1836.