Para resolver los humores gruessos y melancólicos: material knowledge and visual culture around Paeonia officinalis in the Cabinet Salvador Authors Julia Coelho Guimarães de Oliveira Curadora e ensaísta. Graduada em Artes Visuais pela Universidade de São Paulo Keywords: melancholy, occult properties, popular knowledge, rationality, cataloging, care, poison. Abstract This paper is structured around a professional internship developed at the Institut Botànic de Barcelona that consisted in the organization and cataloging of the photographic archive (1985-2017) related to the Salvador Collection. Based on a reflection on the importance of cataloging and disseminating these photographic images in the preservation of the Salvador Cabinet as scientific heritage, we propose a study on a pictural image that stamps one of the doors of the herbarium cabinet. The painting on the furniture of the Cabinet represents the species Paeonia officinalis, which is also part of the Cabinet’s herbarium and pharmacy. This work demonstrates the importance of an investigation that takes into account the intersection between these three areas, to understand its meaning within the Salvador Cabinet, giving special attention to its uses in the treatment of melancholia, the “invisible disease”. Thus, it is intended to associate analytical work around practices related to scientific heritage to investigative work on its history, in order to expand its diffusion. Author Biography Julia Coelho Guimarães de Oliveira, Curadora e ensaísta. Graduada em Artes Visuais pela Universidade de São Paulo ORCID: 0000-0003-1344-1705 Downloads PDF (Português) Published 2022-02-24 Issue Vol. 15 (2022) Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Actes d’Història de la Ciència i de la Tècnica, authors accept the following terms:Authors assign to Societat Catalana d’Història de la Ciència i de la Tècnica (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Actes d’Història de la Ciència i de la Tècnica.Authors answer to Societat Catalana d’Història de la Ciència i de la Tècnica (SCHCT) for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.SCHCT declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Actes d’Història de la Ciència i de la Tècnica is not responsible for the ideas and opinions expressed by the authors of the published articles.