A genealogy of the work of collector: The document and its image

The text analyses the steps to produce and disseminate historical information from image document field in the context of the changes of the document in the digital techniques. The historian is framed as a collector and its gesture as an art of linking dispersed informations. We focused the rythm of the production of pharmaceutical knowledge at the first brazilian school of pharmacy of Ouro Preto, Minas Gerais, as we observe, by manipulating the data stored, the circulation and exchange between brazilian and french teachers, travellers and institutions. The results were published on http://www.arq.ufmg.br/nehcit/efop.