Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
René Vallery-Radot est un écrivain français, né à Paris le 1er octobre 1853 et mort dans la même ville le 24 janvier 1933, gendre de Louis Pasteur dont il a écrit la première biographie.