In the form of an old scrapbook, classically bound with gold letters and prints, comprising a selection of photographs from private family archives, drawings, illustrations and engravings that recalls the fables of the scientific environment of the author's father. The publication brings an interesting aspect, more unusual - compared to the numerous works that use the same expedient - centered on the protagonist: Bahian Aristóteris Teixeira Leão (1917-2002), father of the author and an important scientist who worked between 1940 and 1960 in the area of Parasitology from the Instituto Butantan of São Paulo, quoted in the "Index-Catalogue of Medical and Veterinary Zoology" of the United States Department of Agriculture in its 1957 edition and in the book "História das ciências no Brasil" (EPU, 1980) by academics from São Paulo Mário Guimarães Ferri (1918-1985) and Shozo Motoyama.