GACHET PAUL DOCTEUR (1828-1909) Set of three signed autograph letters addressed to Camille PISSARRO - Paris, March 9, 1872, 3 pages in ink on headed paper " Docteur P.F. GACHET, 78 Faub. St Denis ": Doctor Gachet details on 2 pages the physical and mental affections (depression) from which Pissarro's mother suffers. He reminds Pissarro that his mother needs a "protective arm close to her". "You preoccupied her yesterday by not coming back. Your cutlery was set all day. She'd like to know what you've decided. Write or come. This is for the friend. On the next page you'll find the doctor's prescription". Dr. Gachet was Camille Pissarro's mother's regular doctor. - October 23, 1881, 3 pages handwritten in ink on headed paper " Cabinet électromédical, Docteur GACHET, 78 faubourg St Denis, 78, de 3 H. à 5 heures PARIS ", cold stamp: " My Dear Pissarro, Well carefully read and reread your letter, do not leave me any doubt about the diagnosis of your dear little one. The eruptive affection is only the outward curative manifestation of the nervous state that bursts out of all children of 3 and 7 years of age [...]". Dr. Gachet continues his diagnosis concerning one of Pissarro's children (probably Ludovic-Rodo) and prescribes homeopathy. He finally advises Pissarro to turn to Dr. Léon Simon if necessary. - October 17, 1887, 2 pages on a headed paper " Le Docteur P.F.Gachet, Médecin Consultant, Paris ". (1 small circular ink stain on the fold): "My dear Pissarro, This Monday morning, I went to see your little protégé. I am very much afraid of diarrhea, symptomatic and premonitory of a more serious affection (!) [...] According to your wish, everything has been said and put back in place. I would say that we will get out of it, but with great precautions, both for the present and for the future. [...] ».